:woohoo: Hi and welcome.
Sorry, I can not help you with the 1800 GSR, but I did used to have one. They are very underated, but are really fantastic cars.
I found mine could keep up with TVR's and Porshes on the road when I had the family in, and appeared to be almost as quick as the full blown Evo's on the track (although this is very driver dependant :muhaha: ). In fact for playing with Porshes and TVR's, it was better than the Evo (since having the Evo, I have found very few cars will play

)
Nothing ever went wrong with mine (appart from burning the standard brakes on track!!). You will certainly have lots of fun when you find one.
Good luck, keep us posted on your search and just ask if you have any questions
David