With the bigger brakes, 340 mm AP Racing brakes, the TSO GTC delivers a 0-100-0 time of 12.9 seconds. With the extra power, its 50 to  time is just 2.1 seconds. Top speed is over 185 mph (298 km/h).
In 2006 Marcos announced the TSO GTC, a modified version of the current TSO with a racing suspension, racing brakes and a rear diffuser. The car continues on with its Chevrolet-sourced  V8, but there is also a  Performance Pack available as well. With the extra power from the Performance Pack the TSO GTC accelerates to  in 4.1 seconds and to  in 8.5 seconds.