I wouldn't exactly call it a "sports car", but it is a coupe:



1999 Volvo C70
150K miles, tows the double stack without too many complaints, but the gas mileage sucks - 15 mpg towing and only 24 without the boat(s). Mileage goes down drastically above 65 mph.

The best part is the Dolby Surround system that'll make your ears bleed if you're not careful.