Top 10 10 Of The Slowest Sport Cars by Frédérick Boucher-Gaulin July 12, 2015 Photo: Alain Morin10 : In 1956, this Mercedes-Benz 300SL Gullwing was quite fast... With a 0-100 km/h accomplished in 9.4 seconds. « PreviousNext » Share on Facebook Share: