on the traction control button which first turns off traction control, and then notifies the driver through the Driver's Information Center that Competitive Mode is active and launch control is ready for use. Turbocharged Cobalt owners have found that better times can be achieved while racing when the car is manually launched. These features help propel the car from 0 to in 5.5 seconds, and a quarter mile time of 13.9 seconds at . GM had previously offered a turbocharged four cylinder with front wheel drive in the 1986-1990 Pontiac Sunbird GT and the Buick Skyhawk T-Type from 1986-1988. New for 2009 was the aforementioned four-door sedan option, as well as an optional "reconfigurable performance display" (RPD) for the coupe only. The $295 option replaced the boost gauge in the A‑pillar, and allows the driver to manipulate traction control, stability control, "shift points", and the engagement of Competition Mode, as well as information regarding the car's engine torque and horsepower, g‑force, boost, wideband air fuel ratio, barometric pressure, temperature, and battery voltage. For 2010, the RPD and a power sunroof were standard. The red/ebony and grey/ebony interior color options were also dropped, as was the turbocharged sedan. A stage 1 kit which raises power to and was made available in October 2009 after several delays. The kit can be installed by the owner of the car, but final alteration of the vehicle's engine control unit must take place at a GM dealer. SS Naturally aspirated Chevrolet introduced a naturally aspirated Cobalt SS in the fall of 2005 as a 2006 model, available as both a coupe and sedan. It featured the 2.4 LE5 engine with variable valve timing, making at 5,600 rpm and at 5,000 rpm, later upped to at 4,500 rpm. The LE5 engine was paired with a 5-speed manual (or optionally the 4T45 4‑speed automatic) for 2006 and was introduced on both the FWD Delta platform and RWD Kappa platform. For the 2006 and 2007 model years the car was called SS, or "1SS", but was replaced with the moniker "Cobalt Sport" for 2008 with the anticipated introduction of the turbocharged SS; it is the Getrag F23 transmission with different ratios from the F35 in the forced induction cars, and is the same transmission that Chevrolet mated to the 2.2 L L61 engine in the Cobalt LS and LT. Other changes over the supercharged car are notable but