I hope these are OK to post here, I've got a few 1:148 scale 3D printed cars, mainly as scenic accessories for my model railway, but they are quite nice on their own and quite challenging in their own way. You can't get many 1970s or '80s cars in 1:144 so the 3D prints are a good way to add to the collection (even if they are very pricey).
This is the current selection, some glued to cotton buds to hold them whilst painting. There are 3 different Ford Escort Mk3s (XR3 plus standard 5 and 3-door hatchback). I've also got a Renault 5 and Vauxhall Cavalier in (slow) progress.
It's painted Ford Sunburst Red, although it looks darker on a small model and I've picked out some of the black bits. Doing the lights is going to be a challenge.
The other thing that's tricky is the windows, It's got quite a deep windscreen which isn't included in the kit. My preference is to use an old water bottle which has a variety of curves to suit different vehicles. Glue-n-glaze is ideal to fix windscreens in place.