42066 Air Race Jet MODs and Improvements - Page 2 - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums
LEGO TECHNIC: Air Race Jet (42066) 673419292085 | eBay
2 simple but very effective mods to the 42098's muscle car that makes it look good (I can post how to make the engine block if you all want it) : r/legotechnic