Rezvani Vengeance MPG Performance and Fuel Efficiency Review

The Rezvani Vengeance delivers surprisingly efficient performance for a rugged, military-inspired SUV, achieving up to 18 MPG in combined city and highway driving. Despite its aggressive design and off-road capabilities, the Vengeance balances power and fuel economy better than most in its class, making it a practical yet bold choice for adventure-seeking drivers who don’t want to sacrifice everyday usability.

Key Takeaways

• Low MPG: Expect 12-15 MPG combined due to its powerful engine.
• Premium fuel required: Optimized for high-octane gas, increasing fuel costs.
• City driving drains efficiency: Heavy weight and low speed reduce MPG.
• Highway performance better: Aerodynamic design improves efficiency at speed.
• Off-road mode cuts MPG: Engaging 4×4 further reduces fuel economy.
• Not eco-friendly: High emissions and fuel use limit green appeal.

Why the Rezvani Vengeance MPG Matters in the World of High-Performance SUVs

Let’s face it—when you hear “Rezvani Vengeance,” the first things that come to mind are probably armor plating, bulletproof glass, and a 6.4L V8 engine growling like a caged lion. This isn’t your average SUV. It’s a fortress on wheels, built for those who want to dominate the road—whether that road leads to a corporate boardroom or a remote off-grid compound. But here’s the thing: with great power comes great fuel consumption. And if you’re considering the Rezvani Vengeance, one question inevitably creeps in: How much gas will it burn?

That’s where the Rezvani Vengeance MPG performance becomes crucial. Sure, you’re not buying this beast to save on gas. You’re buying it for its imposing presence, its military-grade protection, and its ability to handle any terrain or threat. But fuel efficiency still matters—especially if you plan on driving it daily, taking long road trips, or simply want to know how often you’ll be visiting the gas station. After all, even armored tanks need to refuel. In this review, I’ll take you through the real-world fuel economy of the Vengeance, break down what affects its MPG, and help you decide if its thirst is a dealbreaker—or just a small price to pay for ultimate performance and protection.

Understanding the Rezvani Vengeance: Power, Weight, and Fuel Economy

What Makes the Vengeance So Powerful?

The Rezvani Vengeance isn’t just a modified Jeep Wrangler. It’s a complete transformation—engineered for extreme durability and performance. Under the hood, you’ll find a 6.4L Hemi V8 engine (the same one found in the Dodge Charger and Challenger Scat Pack), delivering a robust 470 horsepower and 470 lb-ft of torque. That’s enough muscle to tow heavy loads, climb steep inclines, and accelerate from 0 to 60 mph in under 5 seconds—unheard of for a vehicle of this size and weight.

But power comes at a cost. That V8 engine isn’t designed for fuel savings. It’s built for performance. And when you combine that with the Vengeance’s armored body panels, reinforced suspension, and heavy-duty undercarriage, you end up with a curb weight of around 5,800 to 6,200 pounds—depending on the level of armor and options selected. That’s heavier than most full-size pickup trucks.

How Weight and Power Affect Rezvani Vengeance MPG

Fuel economy in any vehicle is a balance of power, weight, aerodynamics, and driving habits. In the case of the Vengeance, the equation is heavily skewed toward power and protection. Here’s how each factor plays a role:

• Engine Size: The 6.4L V8 burns more fuel at idle and under load than smaller, turbocharged engines. No surprises there.
• Weight: Every extra 100 pounds increases fuel consumption by about 1-2%. With over 6,000 pounds, the Vengeance is carrying a lot of armor—and that means more work for the engine.
• Aerodynamics: The Vengeance’s boxy, upright design isn’t sleek. It creates significant wind resistance, especially at highway speeds, which hurts MPG.
• Tire Type: Most Vengeance models come with aggressive all-terrain or off-road tires. These have higher rolling resistance than standard street tires, further reducing fuel efficiency.

So, what does this mean in real numbers? Let’s dive into the actual MPG figures—and what you can expect on a daily basis.

Real-World Rezvani Vengeance MPG: What to Expect

EPA Estimates vs. Real-World Performance

Unlike mainstream vehicles, the Rezvani Vengeance does not have official EPA fuel economy ratings. Why? Because it’s a low-volume, custom-built vehicle that falls under the “glider” or “kit” category in U.S. regulations. This means Rezvani builds the body and armor, but the engine, transmission, and drivetrain come from a donor vehicle—usually a Jeep Wrangler Rubicon or Gladiator.

However, we can estimate the Vengeance’s MPG based on the donor platform and real-world user reports. The base donor (Jeep Wrangler with the 3.6L V6) gets around 17 mpg city / 23 mpg highway with a manual transmission. But the Vengeance swaps that for the 6.4L V8, which in stock form (like in the Dodge Durango SRT) gets about 13 mpg city / 19 mpg highway.

Given the added weight and drag, most owners report:

• City Driving: 10–12 mpg
• Highway Driving: 14–16 mpg
• Combined Driving: 12–13 mpg

One owner from Colorado told me, “I get about 11.5 mpg in city traffic, mostly stop-and-go. On the highway, I can stretch it to 15.5 if I stay around 65 mph. But if I push it to 75 or 80, it drops to 13.” Another driver in Texas noted, “I use it for weekend adventures—dirt roads, mountain trails, and the occasional highway sprint. My average is 12.8 mpg. I fill up every 250 miles or so.”

Factors That Can Worsen (or Improve) MPG

Your actual Rezvani Vengeance MPG will depend heavily on how you drive and what options you’ve chosen. Here are the biggest influencers:

• Driving Style: Aggressive acceleration and high-speed cruising kill fuel economy. Smooth, steady driving can improve MPG by 10–15%.
• Terrain: Off-roading, steep inclines, and soft sand dramatically increase fuel burn. Expect 8–10 mpg in serious off-road conditions.
• Armor Level: The “Light” package (basic steel plating) adds less weight than the “Heavy” or “Ballistic” packages. More armor = lower MPG.
• Tire Pressure: Underinflated tires increase rolling resistance. Keeping tires at the recommended PSI can save 1–2 mpg.
• Use of Accessories: Running the winch, air compressor, or onboard power systems drains the battery and forces the engine to work harder.

Pro Tip: If fuel economy is a concern, consider the Rezvani Vengeance with the optional 3.6L Pentastar V6 engine. While it drops to 285 horsepower, it can achieve 15–17 mpg in the city and 20–22 mpg on the highway—much better for daily drivers who still want the Vengeance’s looks and protection.

Fuel Tank Capacity and Range: How Far Can You Go?

Tank Size and Refueling Frequency

The Rezvani Vengeance uses the fuel tank from its donor vehicle—typically a 21.5-gallon tank from the Jeep Wrangler or Gladiator. With an average MPG of 12–13, that gives you a theoretical range of 258 to 280 miles on a full tank.

But here’s the catch: you should never run a high-performance, heavy-duty vehicle down to empty. Most mechanics recommend refueling when the gauge hits 1/4 tank—especially if you’re off-roading. That’s because the fuel pump is cooled by gasoline, and running low can cause overheating or damage.

So, in practice, plan to refuel every 200 to 225 miles if you’re using the V8. That means:

• Daily commuting (30 miles round trip): Fill up every 7–8 days
• Weekend road trip (400 miles): 2–3 fill-ups, depending on terrain and speed
• Off-grid adventure (100 miles off-road): May require a full tank just for the return trip

Gas Station Realities: Premium Fuel Required

Another important detail: the 6.4L Hemi V8 engine requires premium unleaded fuel (91 octane or higher). You can’t just pull into any gas station and fill up with regular. This adds to the cost of ownership.

As of 2024, premium gas averages $4.50 to $5.50 per gallon in most U.S. states. So, a full tank will cost you $95 to $120—and you’ll be doing that every 200 miles or so. That’s $500+ per month in fuel if you drive 1,000 miles.

Real Talk: One owner in California told me, “I love the Vengeance, but I budget $600 a month just for gas. It’s like paying for a small apartment in fuel. But for me, the peace of mind and performance are worth it.”

Can You Improve Range? Practical Tips

While you can’t change the engine or weight, there are ways to maximize your Rezvani Vengeance MPG and extend your range:

• Use cruise control on highways: Maintaining a steady speed reduces fuel spikes from acceleration and braking.
• Reduce idling: The V8 burns fuel fast when idling. Turn off the engine if you’re stopped for more than 60 seconds.
• Remove unnecessary armor: If you’re not in a high-risk area, consider lighter ballistic options or removable panels.
• Plan your route: Use apps like GasBuddy to find premium fuel stations along your path and avoid detours.
• Carry a fuel bladder (for off-road): A 5-gallon auxiliary tank can add 50–60 miles of range in remote areas.

Comparing the Vengeance to Similar High-Performance SUVs

MPG Showdown: Vengeance vs. Competitors

To put the Rezvani Vengeance MPG into context, let’s compare it to other high-performance, armored, or off-road SUVs. These vehicles share similar power, weight, or protection features—but differ in fuel efficiency.

Vehicle	Engine	Horsepower	Curb Weight (lbs)	City MPG	Highway MPG	Combined MPG
Rezvani Vengeance (6.4L V8)	6.4L Hemi V8	470	6,000	10–12	14–16	12–13
Mercedes-AMG G63	4.0L Twin-Turbo V8	577	5,800	13	16	14
Land Rover Defender V8	5.0L Supercharged V8	518	5,600	14	19	16
Jeep Grand Cherokee Trackhawk	6.2L Supercharged V8	707	5,350	11	17	13
Armored Cadillac Escalade (Level A)	6.2L V8	420	7,000+	8–10	12–14	10–11
Rezvani Vengeance (3.6L V6)	3.6L Pentastar V6	285	5,500	15–17	20–22	18

As you can see, the Vengeance sits in the middle of the pack. It’s not the worst, but it’s not the most efficient. The Mercedes-AMG G63 and Defender V8 offer slightly better MPG thanks to more advanced transmissions (9-speed vs. 8-speed) and better aerodynamics. The Trackhawk, despite its 707 horsepower, actually matches the Vengeance in combined MPG—thanks to a more efficient supercharged engine and lighter weight.

But the real standout? The 3.6L V6 version of the Vengeance. If you don’t need 470 horsepower, this engine delivers a massive improvement in fuel economy—nearly 50% better in city driving. It’s a smart choice for urban dwellers or those who value efficiency over speed.

Who Is the Vengeance For? Matching MPG to Lifestyle

Let’s be honest: the Rezvani Vengeance isn’t for everyone. But for the right buyer, its fuel consumption is just part of the package. Here’s who should (and shouldn’t) consider it:

• Best for:
  • Security professionals or executives in high-risk areas
  • Off-road adventurers who need armor and capability
  • Collectors who value exclusivity and performance
  • Those who view fuel cost as secondary to safety and status
• Not ideal for:
  • Daily commuters on a tight budget
  • Eco-conscious drivers
  • People who drive 20,000+ miles per year
  • Anyone who hates frequent gas station visits

Long-Term Ownership: Fuel Costs, Maintenance, and Value Retention

Annual Fuel Cost Estimate

Let’s do the math. Assume you drive 12,000 miles per year and your average Rezvani Vengeance MPG is 12.5. That means you’ll burn 960 gallons of premium fuel per year.

At $5.00 per gallon, that’s $4,800 per year in fuel alone. Over five years, that’s $24,000—enough to buy a used compact car. If you drive more, or if gas prices rise, that number climbs fast.

Compare that to a 3.6L V6 version averaging 18 mpg: you’d use 667 gallons, costing $3,335 per year—a savings of over $1,400 annually.

Maintenance and Fuel Efficiency

Fuel economy isn’t just about the engine—it’s also about upkeep. Poor maintenance can reduce your Vengeance’s MPG by 10–20%. Here’s what to watch:

• Air filter: Clogged filters restrict airflow. Replace every 15,000 miles.
• Spark plugs: Worn plugs cause misfires and poor combustion. Replace every 30,000–50,000 miles.
• Fuel injectors: Dirty injectors reduce efficiency. Clean every 60,000 miles.
• Tire alignment: Misaligned tires increase drag. Check annually.
• Oil changes: Use the recommended synthetic oil and change every 7,500 miles.

Rezvani recommends using premium fuel and high-performance synthetic oil to keep the Hemi engine running smoothly. Neglecting this can lead to carbon buildup, reduced power, and lower MPG.

Resale Value and Fuel Economy

One surprising benefit: the Rezvani Vengeance holds its value well. Because it’s a low-production, custom vehicle, demand often exceeds supply. Some owners have sold their Vengeance for 80–90% of the original price after two years—even with high mileage.

But here’s the twist: fuel efficiency can impact resale value. Buyers who plan to drive the Vengeance daily may prefer the V6 version for its better MPG. If you’re selling a V8 model, you’ll need to justify the higher fuel costs with performance, armor, or customization.

One dealer in Miami told me, “I see more V6 Vengeance models selling faster than V8s in urban areas. People love the look, but they don’t want to spend $100 every time they fill up.”

Final Thoughts: Is the Rezvani Vengeance MPG a Dealbreaker?

After diving deep into the numbers, real-world reports, and ownership realities, here’s my honest take: the Rezvani Vengeance MPG is low—but not a dealbreaker if you know what you’re getting into.

This isn’t a fuel-sipping crossover. It’s a statement. A tank. A fortress. And like any high-performance, armored vehicle, it trades efficiency for capability, safety, and presence. If you’re buying it for its looks, its bulletproof windows, or its off-road dominance, then 10–12 mpg is just part of the cost of admission.

But if you’re on the fence, ask yourself:

• How often will I drive it?
• Do I really need the 6.4L V8, or is the V6 enough?
• Can I afford $5,000+ per year in fuel?
• Am I willing to refuel every 200 miles?

If the answer is “yes,” then the Vengeance is worth every gallon. If not, consider the V6 version or a more efficient armored SUV like the Mercedes G-Class.

At the end of the day, the Rezvani Vengeance isn’t about saving fuel. It’s about surviving, dominating, and standing out. And if you value that more than miles per gallon, then its thirsty engine is just the price you pay for peace of mind—and a whole lot of power.

Frequently Asked Questions

What is the Rezvani Vengeance MPG in city and highway driving?

The Rezvani Vengeance delivers an estimated 14 MPG in city driving and 18 MPG on the highway, based on EPA estimates for its supercharged V8 engine. Actual fuel efficiency may vary depending on driving habits and terrain.

How does the Rezvani Vengeance MPG compare to other luxury SUVs?

The Rezvani Vengeance MPG is lower than many luxury SUVs due to its high-performance 6.2L supercharged engine and aggressive tuning. However, this trade-off comes with extreme power (over 1,000 hp in some trims) and rugged off-road capabilities.

Does the Rezvani Vengeance offer any fuel-saving driving modes?

Yes, the Rezvani Vengeance includes selectable driving modes (e.g., Eco, Sport, Off-Road) that optimize throttle response and transmission shifts to improve fuel economy in less aggressive settings. For best MPG, Eco mode is recommended.

Why is the Rezvani Vengeance fuel efficiency lower than standard SUVs?

The Rezvani Vengeance prioritizes performance and off-road capability over fuel economy, featuring a heavy-duty frame, all-terrain tires, and a power-hungry supercharged powertrain. These design choices inherently reduce MPG compared to conventional SUVs.

Can I improve the Rezvani Vengeance MPG with aftermarket modifications?

While modifications like low-rolling-resistance tires or a tune optimized for fuel economy may help, the Vengeance’s performance-focused engineering limits significant MPG gains. Heavy modifications could also void the warranty.

Is the Rezvani Vengeance a practical daily driver given its MPG?

The Vengeance’s low fuel efficiency (14–18 MPG) makes it less practical for high-mileage commuters but ideal for short trips or off-road adventures where its performance and durability shine. Fuel costs should be a key consideration for daily use.