Some cars leave a paper trail; the Lotus 97T left a name and a place in Lotus's list. What follows is what can be said with a source behind it. The shape is credited to Gérard Ducarouge (Technical Director) / Martin Ogilvie (Chief Designer) / Mike Coughlan (Assistant Chief Designer) / John Davis (Head of Aerodynamics and R&D).
The story
The Lotus 97T was a Formula One racing car designed by Gérard Ducarouge and built by Team Lotus for use in the 1985 Formula One World Championship. A development of the previous year's 95T, the car was powered by the turbocharged 1.5-litre Renault EF15B V6 engine and ran on Goodyear tyres.
What is underneath
the output is 760-810 hp @ 11,500 - 12,500 rpm. On the scales it comes to 540 kg. That is roughly 1407 horsepower per tonne: hypercar territory, where the limiting factor is the tyre, not the engine. The wheelbase is 2730 mm. These are manufacturer figures carried by Wikipedia and Wikidata, not road-test measurements.
Its place in the line
In the Lotus line-up the Lotus 97T has a clear place: it replaced the 95T; it handed the line to the 98T. Nearby in the Lotus catalogue sit the Lotus 100T and the Lotus 101.