The 2002 Mercedes SL500 convertible features the first brake-by-wire system.
With 302 horses at your disposal, you'd think that stopping the 2002 Mercedes SL500 convertible would be an issue. Not so.
The car features the first brake-by-wire system. Hit the brakes and a computer begins slowing you within a fraction of a second. The system also determines which wheels have the most traction and applies the brakes accordingly to prevent a skid.
And just in case it pulls a Windows 98 on you, hydraulics act as a backup. Available next spring; price not set.