Nice stuff!
some notes:
Like many Fujimi kits the Z is a modified re-issue. Most releases of this car do not have an engine. That should explain the molded shut hood. BTW; there was a special limited edition that had a cast metal engine!
The EM Porsche has some fit issues... Mostly the engine, some of pipes are too short, the battery is too long (turn it sideways), there are more... I think the front suspension link is too long on some releases (front wheels towed out), the bumper covers are just wrong and hard to fix too.
The race car kit looks cool (how about a peek inside the box!).
What are the decals for?