As the 2 Series replaced the 1 Series coupé and convertible models, the first generation M2 was marketed as the most basic M Car in the range. The M2 featured a more powerful and responsive, turbocharged and special tuned BMW N55 engine, while its successors, the M2 Competition and M2 CS, featured a high performance twin-turbocharged engine developed by BMW M GmbH (S55 engine); improved handling, suspension, and braking systems; aerodynamic body enhancements; interior/exterior accents with the tri-colour "M" (Motorsport) badging and increased weight. The M2 is unofficially considered as an indirect successor to the BMW 1 Series M Coupé.[citation needed]