In European markets, General Motors Europe sometimes choose to discount the agreement, meaning that certain high-powered Opel or Vauxhall cars can exceed the mark, whereas their Cadillacs do not. Ferrari, Lamborghini, Maserati, Porsche, Aston Martin and Bentley also do not limit their cars, at least not to . The Chrysler 300C SRT8 is limited to 270 km/h. Most Japanese domestic market vehicles are limited to only or . The top speed is a strong sales argument, though speeds above about are not likely reachable on public roads.