Nice GTX. Who makes that one, and how much is it?
Personally, Maisto is one of my favorite companies, as they are decent quality but at a good price usually. My die cast collection includes a Z06 Vette, a Diablo, XK8, 1950-something Mercedes 190, Hummer, and Pronto Cruiser Concept (precursor to PT Cruiser), as well as a '72 Chevelle SS454.
I also am in the process of building a couple 1:25 and 1:24 scale models. A '95 ZR-1 (progress stalled due to sh***y Canadian Tire spray paints orange peeling on me), a '57 Chevy street rod (progress also stalled... continue it later). I also have a '67 Vette pretty much done (just lacks decals), and a Testarossa and '53 Vette done. Oh, and a monte carlo NASCAR, too. (I don't know why I have the NASCAR model, I don't like that type of racing).