i'll share ONE custom idea though... as a tree hugger, i don't want to own any car that pukes carbon dioxide & monoxide etc. so it'd be an electric rod with a "tiny" motor. at the front of the motor, i'd put a plasmaspere light (blue lightning) with no radiator so you can see it's an electric motor from the front.
i can share the original my design's based on...

OK... i'm going to try and share it one more time...

AHA!!! now i know what the problem was! after reading up on the issue here... URLs have to end in JPG (actually... PNG works too... i don't do JPGs... they degrade when edited) when i returned to the upload i just did, i clicked on the BB option and got a forum friendly URL i can post directly without needing to format the URL with the pic button in the editor here.
i call my design "GOLD FUSION". it started out with the "radical" idea of chroming the frame and then i said "why stop there?"
here's a test i did to see what the front end would look like

it isn't brass... but i always thought it looks kinda steampunk, especially with the electric motor. now i just need to win the lottery to build it! the gold plating alone would probably cost a couple hundred thousand.
here's an early draft i came up with. the whole idea started as a autosound competition vehicle where ALL the windows roll down and there's tube amps in back. i realized, i had to chop it for the windows to be able to roll down after i started gold fusion
most recently, for this thread... i like that lakes racer buick with the "cow plow" front spoiler... a reference to steam trains, and it just looks like a bad butt battle tank with missle launchers (headlights)