Lotus unveiled the Esprit S4S in 1994 at the British Motor Show. The new Esprit had a 300 horsepower engine, modified suspension, and a new wing, wheel and tire package.
In 1993, Lotus unveiled the S4 which was the first model to include power steering. This car was succeeded in 1995 by the S4s, which upped power to 300 bhp while retaining the comfort of the S4. This car was to be the end of the line for the Esprit but a cancelled project for a front engine car had left Lotus with a compact V8 and no car to put it into.
The S4S was powered by an Inline-4 engine with an output of 300 hp at 7000 rpm and a peak torque of 290 lbs-ft at 3600 rpm. The S4S had a top speed of 168 mph and made the 0 to 60 mph sprint in just 4.6 seconds (0 to 100 mph in 11.4 seconds).
Externally, the S4s recieves the bodywork of the previous S4 Sport 300. Such enhancments include a larger rear wing and bigger wheel arches.