A roadster is a type of car that has two seats, is usually small and convertible, and is designed for driving on roads. It is typically sporty and fun to drive. Full definition
I've had my M roadster for two months now. (cars.com)
The car is a two - seat roadster with an extended front side as the distance between the driver and the front wheels is fairly long. (thesupercars.org)
Called the TT - RS Plus, this new model will be offered in both coupe and roadster versions. (topspeed.com)