Just two years after the 944 turbos intro, Porsche plugged the performance gap between the ordinary 944 and the turbo with the 944S. Thanks to a cylinder head with four valves per cylinder and two overhead camshafts, this version developed 188bhp and a top speed of 140 mph + and 0 to 60 in the 7-second bracket.
The range was rationalized in 1989, with the turbo now enjoying 250bhp, and the S2, updated to 211bhp, a lighter cylinder block, and for the first time in any production car a plastic oil sump.
Hindsight must question 'why?' the 944S was so short lived, my guess is down to the falling sales of the 944 across the world at that time, money and rationalization of the range giving a wider performance gap between the two models?, 1989 was nota good time for Porsche sales wise, so it's a fair bet that cost saving was a factor.