This here is an actual PC demo, but I replaced customized Porsche Cayman S with Mazda Familia GT-R (though I forgot to remove Enkei decal despite this Mazda uses 5Zigen rims). This was all done with Binary and NFS-VltEd. But because it's a demo version of the game, I had to copy demo's executable file as speed.exe.

Some cars are not featured in the PC demo (Clio is absent in this demo along with BMW M3 GTR (both street and racing models)), as the models of them are absent in this demo (much like in OPM (Official PlayStation Magazine, now Play (not the one that it lived before 2016, but the one that replaced OPM in 2021)) demo for PS2). Unlike in OPM demo for PS2, modded content (more specifically replace mods) are working, though there might be memory leaks as there's no asi scripts for PC demo were made.