The purpose of the Roadster is to “bring motorsports into family life”, and its introduction has given many ordinary people who are obsessed with motorsports the opportunity to experience a racing driver, so the Roadster can be interpreted as a “civilian version of the race car”, rich in sportiness. The body of a traditional Roadster is two-door, i.e., it has only two doors on the left and right, two seats or 2+2 seats (the two rear seats are especially narrow, such as the Porsche 911), and a folding soft top or hard top. Roadster usually has two seats, lightweight body, and its engine is generally more powerful than the ordinary car engine, so the acceleration is good, its speed is also higher.
Roadsters are designed to focus on maneuverability. Due to the low body, the passability is relatively poor, the more advanced Roadster, the more obvious this feature. Front-engined Roadsters have a long front end and a small trunk at the back, while rear- and mid-engined Roadsters don’t even have a trunk, just a small space for a spare tire under the front cover. Common features of Roadsters are excellent power, sporty looks and smooth lines.
According to a relatively generalized approach, sports cars on the market can be divided into three main categories: firstly, expensive, high-grade sports cars with excellent speed performance, such as the full models of Bugatti, Pagani, Koenigsegg, but also some models of Ferrari, Maserati, Lamborghini; secondly, mid- to high-end Roadster, which is often more comfortable than it is powerful, with Mercedes-Benz SLK, BMW Z4, Audi TT, MG Cyberster as a representative, Porsche Boxster, Lotus Elise, Nissan 370Z is also categorized in this category; third is a relatively low-grade Roadster, generally pay more attention to the shaping of the appearance, such as the Mazda MX-5, Hyundai coupe, Volkswagen Shangkou and other cars.