The one-off Aston Martin Bulldog concept has some unfinished business. Many of Aston Martin's modern road cars like the DBS Superleggera can reach top speeds exceeding 200 mph without breaking a sweat. Even the DBX, a large luxury SUV, will top out at 181 mph. Back in the 1980s, 200-mph top speeds were less common, but Aston Martin was determined to break the 200-mph barrier with the one-off Bulldog project. Designed by William Towns, who also penned the design for the wedge-shaped Lagonda, the Bulldog was a striking mid-engine supercar with an angular design and gullwing doors. Powering the project was a 5.3-liter twin-turbo V8 producing 700 horsepower, an immense output for the time. Aston Martin was confident this would enable the Bulldog to reach 200 mph, which would make it the fastest production car of its time. It came frustratingly close, achieving 191 mph at the MIRA test track in 1979.