Please answer correctly.

There r hundreds of street-legal race cars:
Ford GT/Mustang (Saleen Mustangs)
Shelby
Lotus Elan, Esprit, & Elise
Ferrarri, Lambo, Mercedes/McLaren
Porsche 944/928/911 etc.
Chevy Corvette
Toyota/Lexus, Subaru, Honda/Acura, & my personal fave - Mazda RX-7 & RX-8

All of the above have been raced at LeMans. Some r also frequently on the World Rally Circuit, the ALMS, & the SCCA series(amatuers).

There is the NASCARs - Ford, Chevy, & Dodge

Almost every car manufacturer makes a street-legal racer. They would not be in business very long if they didn't. Now, if you're asking if there is a car that races in a particular racing league & the one they race in the league is EXACTLY the same as the one u could buy from the dealer. then u need to post the question again with those details included.

That is a pretty loose definiton.lots of cars can be raced in sanctioned events & still be street legal. The SCCA & NASA have classes for cars whose modifications r either none or very little, & would still be registerable in all 50 staes here in the U.S. Since u posted this in Porsche, u could argue that the GT2 & GT3 r barely-legal race cars, & there r race events where these cars can be taken to the track & wrung out (the Porsche Club of America holds lots of these types of autocross races).

The Ferrari Enzo has an only slightly-detuned factory racing engine.

The F40, F50 and--well, almost any Ferrari, actually (including the 80 is 308's)--all have engines that were developed for circuit racing & slightly detuned to meet emissions standards.

The Ford GT40 & Shelby Cobras were street legal race cars; the GT features the famous engine that grabbed Ford 3 Le Mans victories in the muscle car days.

The Jaguar XK engines fitted to the XKSS (re-bodied D-type) & XKE (E-type) were circuit racing engines that were terrors in Europe AND on tracks over here in the states.as manifested by the records they're still breaking in vintage racing. And the XKSS, while there were only 16 made, were all U.S. street-legal.

Porsche is Carrera GT & GT3 feature the latest-generation F1 engine & factory racing suspension.

And of course we can not forget the McLaren F1.

Remember that it used to be common practice in car manufacturing to produce just enough of a car for street use to qualify its engine for series racing. The sales of the production models went to support the company is racing program. Jaguar, Austin-Healy, Renault, & many others stepped mostly away from this program. Ferrari & Porsche (among others) continue it to this day.

So there r many right to ur quesiton. There is no ''one & only'' street-legal race car. So long as the car is pre-1974 or emissions-friendly & equipped with tread tires, it is street legal--even if it is really a race car.

There r hundreds of other examples l did not list, BTW; it is just practically impossible to detail every street-approved race car out there.

what ... ?

the chevrolet S 10, could be supped up for a a full blown race car and still be street legal

l have on myself

i use it for midnight runs at the desert in Glamis, to go get grosseries, and to work at Sand cars unlimited

All Grand Am Cup race cars can be licensed for the road.

There are quite a few road legal racing style cars, and all of the World rally cars are legal cos they drive on public roads. But ya cant buy them, and Im guessing thats what you mean.

The only one you can buy at the moment, is the Maserati MC12 Corce, it was designed to be an out and out race car, not like a Ferrari which has the potential, but has been softened for road use. But the thing is still street leagl. (its not a bad looking motor either!)