What is the most fuel efficient muscle car?

There's no single definitive answer to what the *most* fuel-efficient muscle car is because "muscle car" is a loosely defined category and fuel efficiency figures vary by model year, engine option, and driving style. However, some contenders for relatively better fuel economy *among* muscle cars include:

* Modern, smaller-displacement V6 muscle cars: Some manufacturers offer muscle cars with V6 engines instead of the traditional large V8s. These naturally achieve better MPG. Specific models will vary by year and brand, but you'll generally find improved efficiency in this category. Look at models from Ford, Chevrolet, and Dodge that offer this configuration.

* Hybrid muscle cars (if they exist): While currently uncommon, a hybrid powertrain is theoretically the most efficient route to a muscle car. There are no true mainstream hybrid muscle cars on the market at present, but future models could change this.

It's crucial to check the EPA estimated fuel economy for specific makes, models, and years you're interested in. Websites like the EPA's FuelEconomy.gov provide this data. Don't just rely on general statements - always look up the precise numbers for the car you're considering. Keep in mind that real-world fuel economy can vary significantly from EPA estimates.