Chrysler launched two offshoots of its Concorde sedan as early 1999 models: the LHS, which had been available in the prior generation, and the completely new, sport-oriented 300M. Both the LHS and 300M used the same front-drive chassis as the Concorde/Intrepid, but had distinct styling and shorter bodies. They shared a 253-horsepower V6 engine and 4-speed automatic transmission, though the 300M was fitted with Chrysler's AutoStick automatic, which permits manually-selected gear changes using a separate shift gate. Antilock all-disc brakes and traction control were standard. Side airbags were not available. Running changes during their first season included removal of the 118-mph speed limiter. Both models also gained a trunk cargo net, plus Chrysler's Sentry Key theft-deterrent system, which disabled the ignition unless the proper key was used. The 300M had a sportier suspension and steering settings, but the same 17-inch tires as the LHS. The Performance Handling option gave the 300M more aggressive 16-inch rubber. The LHS and 300M were strictly 5-passenger sedans. Leather upholstery and heated front seats are standard, and the 300M added a 60/40 split-folding rear seatback.