Both the US Speedtrack Trucks have been hard to come by of late and these two are worth snapping up if you haven't already got them. My versions on 12V chassis are a hoot to race with, although as mentioned before they do not like the Lap Counter.
Another nice pairing are the Speedtrack Gremlin & Pinto. A word of warning though - they cannot be fitted with 12V HVT Chassis and also remember to remove the light bulbs.
The Texaco F1 racer is also a nice car to own - for the right price. This version looks as mint as possible.
A carded HULK VAN is also one to watch - not least because as Marvel merchandise it becomes collectable for altogether different reasons.