This is a Vauxhall Chevette 2300HS . (UK car). From 1978.....I had one of these in '78 , when I was 21 . These were a 'Homologation' special , intended as a qualifying car for the rally car world . There was a limited run of around 200 cars only.
They had a twin cam version of the 2.3 ltr engine from the Victor/VX range ( a car that was 2 sizes up from the Chevette.) and were one of the fastest 'hot hatch' cars of the day ! Its main competitor was the Ford Escort RS2000 , but the Chevette was faster and was far superior handing wise compared to the Escort !
Wish I still had one today ! I paid £5500 for mine back in '78 ( which was a lot of money! ) ..... On the rare occasion that a properly restored one pops up these days , you'd be looking at £30000+ !