Cheapest 400 HP Sports Cars: Top Picks

The current cheapest new sports car with 400 horsepower is the Dodge Challenger R/T Scat Pack, with an MSRP around $45,000. That price gets you a 485-horsepower V8, making it the least expensive way to buy a factory-new car with over 400 hp.

Formula

The calculator works out the cost per horsepower and the horsepower per $10,000. The first is simply price divided by power: $ per hp = Price ÷ Horsepower. The second flips it to show how much power you get for every $10,000 spent: hp per $10k = (Horsepower ÷ Price) × 10,000. Both are pure ratios, so any currency works as long as you use the same one for price.

Worked Example

Using the default values from the calculator (price $45,000, power 485 hp):

• $ per hp = 45,000 ÷ 485 = 92.78 USD/hp
• hp per $10k = (485 ÷ 45,000) × 10,000 = 107.78 hp

So you pay about $93 for each horsepower, and for every $10,000 you spend, you get roughly 108 hp. That is an excellent ratio compared to most sports cars, which often sit above $150 per hp.

Why the Dodge Challenger R/T Scat Pack Wins

The Challenger Scat Pack is the clear budget champion for raw horsepower. Its 6.4-liter Hemi V8 makes 485 hp and 475 lb-ft of torque. It is a large, heavy car, so it does not handle like a Miata, but in a straight line it is brutally fast: 0-60 mph in the low 4-second range and a quarter-mile in the low 12s. The base Scat Pack comes with a manual transmission, which is rare at this price. The automatic is a bit more expensive but shifts quicker.

Other contenders are close but not quite there. The Ford Mustang GT starts around $42,000 with 480 hp, which is actually cheaper on paper. However, the Mustang GT’s base price does not include the performance pack, and once you add options that most buyers want, it edges past the Challenger. The Chevrolet Camaro SS also makes 455 hp and starts near $40,000, but the Camaro is being discontinued, and remaining inventory is spotty. The Challenger is still in production, widely available, and often discounted below MSRP.

How to Compare Value Beyond Horsepower

Horsepower per dollar is a useful metric, but it is not the whole story. Here is what else matters:

• Torque: A car with 400 hp and 400 lb-ft feels much faster than one with 400 hp and 250 lb-ft, especially from a standstill.
• Weight: Power-to-weight ratio (hp per ton) is a better predictor of acceleration than raw horsepower. The Challenger is heavy, so its power-to-weight ratio is similar to a lighter car with less power.
• Transmission: Manuals are engaging but slower; automatics are faster and easier in traffic. The Scat Pack offers both.
• Fuel economy: A 485-hp V8 will drink fuel. Expect around 15 mpg city and 24 mpg highway, and you will need premium gas for full power.
• Insurance: High-horsepower cars cost more to insure. Get quotes before you buy.

If you want the absolute cheapest way to get 400 hp, a used car is always cheaper. A used Mustang GT or Camaro SS with 400+ hp can be found for under $25,000, but you take on maintenance risk and prior abuse.

Common Problems and Ownership Costs

The Challenger Scat Pack is generally reliable, but there are known issues:

• Rear tires: 485 hp will chew through rear tires quickly, especially if you launch hard. Budget for replacement every 15,000-20,000 miles.
• Brakes: The heavy car needs strong brakes; rotors and pads wear faster than on a lighter car.
• Fuel system: The Hemi is sensitive to fuel quality. Use premium to avoid knocking.
• Lifter issues: Some Hemi engines have had lifter failures, though this is more common on earlier models. A warranty is wise.
• Insurance: As mentioned, this is a high-risk car for insurers. Young drivers may face very high premiums.

Annual running costs (fuel, tires, insurance, maintenance) can easily exceed $3,000-4,000 per year, depending on how you drive.

How to Choose the Right 400-HP Car for You

Ask yourself these questions before buying:

1. Do you need a back seat? The Challenger has one that fits adults; the Mustang and Camaro are tight in the back.
2. Do you care about handling? The Camaro SS is the best handler of the three, with a superb chassis. The Challenger is the worst.
3. Do you want a manual? The Challenger and Mustang offer manuals; the Camaro’s manual is being phased out.
4. Do you plan to track it? If yes, get the Mustang GT with the Performance Pack or the Camaro SS with the 1LE package. The Challenger is too heavy for a track.
5. What is your budget for running costs? If you cannot afford the extra fuel and tires, a 400-hp car will be a burden.

For most people, the Challenger Scat Pack is the best value because it is the cheapest new car with over 400 hp, it is comfortable for daily driving, and it has a huge trunk. If you want a more agile car, the Mustang GT is the better all-rounder, and the Camaro SS is the best driver’s car but the worst daily.

Alternatives to Consider

If you are flexible on the 400-hp threshold, here are other options:

• Used Corvette C7: A 2014-2019 Corvette makes 455-460 hp and can be found for $35,000-45,000. It is lighter, faster, and handles better than any muscle car, but it is a two-seater with limited practicality.
• Tesla Model 3 Performance: Around $45,000 new, it makes 510 hp (electric) and does 0-60 in 3.1 seconds. Running costs are much lower, but you lose the engine sound and the manual transmission.
• BMW M2: A used M2 with 405 hp can be found for $40,000-50,000. It is a compact, balanced sports coupe with a great manual option.
• Nissan Z: The new Z makes 400 hp and starts around $42,000, but it is a niche car with limited dealer allocation.

Each of these has a different character. The Corvette is the best performance value, the Tesla is the cheapest to run, and the BMW is the most refined.

Frequently Asked Questions

Is the Dodge Challenger Scat Pack the cheapest new 400-hp car?

Yes, as of 2024, the Challenger R/T Scat Pack has the lowest MSRP among new cars with over 400 horsepower. The Ford Mustang GT is slightly cheaper on paper, but once you add the Performance Pack (which most buyers want), the Challenger is cheaper.

What is the cheapest used car with 400 hp?

A used Ford Mustang GT (2015 or later) or Chevrolet Camaro SS (2016 or later) can be found for $20,000-25,000. Older Corvettes (C6 with 430 hp) are also in that range. Prices vary by region and condition.

How much does insurance cost for a 400-hp car?

Insurance varies wildly by driver, location, and car. A 20-year-old male could pay $300-500 per month for a Challenger Scat Pack, while a 40-year-old with a clean record might pay $100-150. Always get quotes before buying.

Can I daily-drive a 400-hp car?

Yes, but it is not ideal. The Challenger is actually a comfortable daily driver with a soft ride and a big trunk. The Mustang and Camaro are more cramped and have harsher rides. Fuel costs will be significant, and the car will attract attention.

Do I need premium fuel for 400 hp?

Most high-performance engines require premium (91+ octane) to make full power and avoid knocking. Using regular will reduce power and fuel economy, and may cause engine damage over time. Check the owner’s manual.

What is the cheapest way to get 400 hp if I build it myself?

Buying a used V8 sedan (like a Chevy SS or a Dodge Charger) and adding a supercharger or turbocharger can get you 400 hp for under $15,000 total, but reliability and tuning are major concerns. A factory 400-hp car is safer and often cheaper in the long run.

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in t | Price | USD | 45000 | 0
in p | Horsepower | hp | 485 | 0
out pp | $ per hp | USD/hp | t / p | 0
out hp_per_10k | hp per $10,000 | hp | (p / t) * 10000 | 2