The S2 evolved over a period of about six months from the end of 1988 into 1989. You may see some cars referred to as S1.5's even, since many of the features introduced for the S2 appeared on S1's until the specification was standardised.

TVR S2 Brochure

Amongst the changes were:

Andrew Pybus's S2The 2.9 litre version of the Cologne engine differed in more than just capacity. The cylinder head design is different and new electronic fuel injection system was used. The power ouput was up to 168 bhp, and torque up to 172 lbs/ft.

 

Model Engine Power Torque Weight Max Speed 0 - 60 mph
S2 Ford V6 2933cc 168 bhp 172 lbs/ft 940 kg 131 mph 6.9