Does such a model exist? I have looked around fairly briefly and did not see anything. 
Just starting a collection of models of real cars I have owned and this is the main piece. 

I have as couple of matchbox size ones and a larger one.

They are on evilbay quite often.

I have an MR2 Spyder diecast model. I think its 1:24 scale.
cheers
Steve

Hey Joel, there is a 1:18 diecast Spyder made by Autoart around $85+ (I have a yellow one for sale if you want it) and the AFL set in team colors.  Matchbox do a 1:56 AW11 labelled as "Pace Car" and EBBRO do a 1:43 SW20 and the Hotwheels version both come up from time to time on Epay. There are a some others if you keep your eye out.
 
I have lobbied all the manufacturers for many years to get someone to make a 1:18 die cast SW20 without success.  They suggested $100K up front for the tooling, yet Burago, Biante and Miasto turn out Ferrari and Porsche by the 100s.  Go figure!!!

I have that matchbox AW11 Pace Car. Often see them pop up in ebay as mentioned above.

Sorry guys I was after the SW20. I have seen a plastic model on eBay maybe thats my best bet.
 

Ebbro make them. I have an 2 x AW11 one and a SW20 one.
 
http://www.ebbro.com/cata...dies/MR2/Red/index.htm
 
Looking to sell one of the AW11 if anyone is after that...

Have 8 or more different Spyder ones in different sizes ,No matchbox though. Have the boxed pace car, boxed 222D and a boxed birthday card SW Hotwheels.

There's a fair few companies making MR2's, including the SW20 in a number of scales, even Hot Wheels have released a few including this one in 1998.
 
Ebay's your best bet. Not only are there some great detailed models from places like Ebbro, and M-tech, but generally there are a few cheaper Chinese knock offs that look like they are using similar moulds, but  crappier materials and finishes, which might be a better option if you don't work to fork out too much money.

I have a micro machines sw20. Got it from eBay for like $10 if I remember correctly. It sits in my car between the seats by the rear window