In 1993, Porsche Motorsports at Weissach briefly produced a Turbocharger 968 Turbo S, a fairly odd naming choice for Porsche which usually reserves the added "S" moniker for models that have been tuned for more power over a "lesser" counterpart, such as with the 911 Turbo. The 968 Turbo S shared the same body and interior as the Club Sport and visually can be identified by the NACA bonnet hood scoops, adjustable rear wing and deeper front spoiler. Powered by a large 8 valve SOHC cylinder head (944 Turbo S) with a 3.0 L 944S2 style engine block. Tests conducted in 1993 produced a 0 to  time of 4.7 seconds and a top speed of , performance comparable to the much newer Porsche 996 911. It generated  at 5,600 rpm with a maximum torque of  at 3,000 rpm. Only 16 were produced in total and only for sale in mainland Europe.
What does the "S" usually indicate on Porsche Motorsports models?
tuned for more power