Mat's piece on the Tamiya Mercedes-Benz SLR McLaren reminded us that Scalextric produces a fine two-car set to 1:32 scale.
These are motorized slot cars, but the fine presentation pack and high moulding standards mean that they are eminently collectible as scale models in their own right.
For the realism fan, some light weathering would be all that's needed to turn this pair into fine desktop presentation pieces. And note too, that they are both SLRs - the M-B 300 SL 'Gullwing' was a hard-top coupe; the SLR was an open two-seat track racer.
The Scalextric two-car pack is presently available at a good discount from Amazon, here.