ZF 5HP automatic transmission was available on all models. In many markets, a 5-speed manual transmission was available for the 725tds, 728i, 730i, and 735i, while a 6-speed manual was on offer for the 740i. Equipment Safety features include ASC+T traction control, Dynamic Stability Control (DSC), headlight washers and auto-leveling low beam xenon HID headlamps. Side tubular airbags (called "Head Protection System") were fitted as standard equipment. "Active Comfort Seats" were introduced in 1998, to improve comfort and reduce fatigue for the driver and front passenger. This system uses two fluid-filled bladders which alternate in height. Other equipment includes Electronic Damper Control (called EDC III), Park Distance Control (PDC), auto-dimming & power folding mirrors, power moonroof, power rear sunblind, rain-sensing wipers, dual zone or tri-zone climate control, electric drivers seat adjustment and electric steering wheel adjustment. Double glazed windows were available (called "dual pane glass"). Break resistant laminated "security glass" was also available, which is known to delaminate. The delamination occurred with the Protection S357A option only, not with normal S352A dual pane windows. Bullet-resistant glass was used for the Protection model, with even thicker glass used for the Security model. The Sport Package included revised steering wheel, suspension, exterior trim and interior wood trim. Some sports models also included a shorter differential ratio and higher stall speed for the torque converter. This allowed for a 0–97 km/h (60 mph) acceleration time of 5.9 seconds. In-car electronics The E38 was one the first European car to be available with satellite navigation, a system called CARIN jointly developed by BMW and Philips. The in-car entertainment (radio, audio system, satellite navigation, television and communications systems) are part of an automotive communication system called I-bus. A multi-function steering wheel included controls for the audio, phone, cruise control and air recirculation. Special models L7 From 1997 to 2001, BMW marketed an extended wheelbase limousine model called the L7. The wheelbase was extended by over the "iL" models, resulting in an overall length of . Features included electrically adjustable rear seats, rear footrests, fold down rear trays, a fridge, rear television screen, video player and a fax machine. Based on the 750iL with a 12-cylinder engine, the L7 has an electronically limited top speed of . The L7 was only available in the Middle East, Southeast Asia and Europe, and 899 examples were built. The 2000-2001 models had an optional "privacy window" glass partition to