to a common crank with separate engine monitoring systems. Cars with Designo option were available in exclusive colours and with high quality customisable interior appointments such as the optional natural stone veneer. Safety In 2003, the cars were upgraded with Pre-Safe precrash system and a newer electronics package that included a DVD-based navigation system instead of the CD-based COMAND system. Also, the engine options changed. The CL 55 AMG became supercharged allowing the car to accelerate from 0-60 mph in 4.27 sec according to Motor Trend and the V12 CL 600 had turbochargers added and a slight engine capacity reduction, from 5786 cc to 5513 cc. Both cars produced the distinction, again, was the quietness of the CL 600 as compared to rather noisy CL 55 AMG. Albeit the CL 600 Bi Turbo official power figures were understated to preserve sales of the CL 55 AMG Kompressor models. The more powerful CL 65 produced . The top speed of the car was limited to . Electronic Stability Program (ESP) and Brake Assist were standard features for difficult driving conditions and emergency maneuvers. The C215 CL-Class added standard front and rear side curtain airbags. In total, the C215 features 8 airbags: 2 frontal (driver and passenger), 4 side airbags (one for each passenger, optional for rear seats) and 2 window-airbags. LED brake lights were also standard issue on the C215. LED brake lights illuminate faster than conventional bulbs. Comfort and convenience Optional Distronic cruise control, which could maintain a set distance between the CL-Class and any vehicle in front. Speedtronic adjustable speed limiter for not exceeding a set speed on roads with speed limits. Optional Keyless Go, a smart key entry and startup system. Rain-sensing windshield wipers. Light sensors to turn the headlights on and off automatically, depending on lighting circumstances. The instrument display and the COMAND screen's backlight and colour also adjust automatically depending on the ambient light situation. Parktronic visual and audible parking aid, with sensors in the front and rear bumpers. Also, the passenger side mirror can swivel down automatically when engaging reverse, to help see the curb. Automatically heated exterior mirrors. Fully automatic climate control system with pollen and charcoal filters and optional separate rear-seat climate controls. COMAND system combines the controls for audio systems, the television, the navigation and the telephone. COMAND based cars offer higher quality audio compared to the Audio 10 system. Optional BOSE