There is a 1/18th diecast Red/Black 71 Chevelle on Ebay right now for $25. It is described as 'Maisto 1971 Pro Rodz Chevrolet Chevelle SS454 1:18 Diecast Car' but from the picture it is actually not the Pro Rodz series but rather the stock model which is 'Maisto 31890'. That was issued in a few colors but the blue seems more common now than the red. If you want the Pro Rodz one there is also one of those on Ebay. If you want a red with black stripes 1970 Chevelle, I have one of those by Ertl to sell. A bit better detail than the Maisto but probably the wrong year for you.