For the 2011 model year, BMW introduced the Competition Package to their E90 M3 cars. Also known as the ZCP, the Competition Package mainly focused on improving the suspension and electronic stability control. Ride height was lowered, and an 'M' Mode for the electronic stability control was added. Output from the 4.0L naturally aspirated V8 engine remained at 414hp. Manual-transmission equipped Coupe versions of the Competition Package were built until 2013 and featured a 6 speed gearbox that sent drive to the rear wheels.