U can remove the rivet by using soldering machine or drill using 2.5mm bit...rescrew back with small screw after change the wheels....I have also detailed a Tomica cool drive WRX STI that I bought recently. It is a plastic body, so changing wheels is also easier as I don't know how to remove the rivet in steel castings. Tried to mimic the daytime running LED in the car. Also added the clear area for the rear reverse lamp.
Tomica cars are expensive but more solid & paint not easily came off like HW....my kids got few tomicas but to them its still the same as HW cars so no point spending more than it should...1 tomica cars can even buy 5 HWs
I like the retro tomicas but too expensive for a 1/64 scale car