* Early Ford Mustangs (1964.5-1966): These first-generation Mustangs, especially the base models with the smaller engines, were relatively lightweight compared to later muscle cars.
It's crucial to note that:
* Weight varies by trim and options: A base model Mustang will be significantly lighter than one equipped with a large engine, automatic transmission, and heavy-duty options.
* "Muscle car" is subjective: There's no universally agreed-upon definition. Some might include cars that others exclude.
Therefore, while early Mustangs are often cited as contenders, pinpointing the absolute lightest muscle car requires specifying the exact model year, trim level, and options.