I had written rap songs in the early '90s and even did a couple homemade rap songs with my brother in like '88 or '89, but it was just like... I don't even know how to say it. Just plain rap. I was just rapping about whatever, there was no real style or direction, it was just semi-braggadocious rhymes that probably imitated 100 other rappers.
I probably have the most fun thinking up original vehicles. I usually consider details such as how to get into them and where their engines are. When you draw a real-world car, you have to obtain some references. I'd hate to have someone point out that I'm wrong. But if it's something I invented, I can have it my way.