passengers

Knewrome

No, but a simple solution would be to mount a motorcycle-style sidecar near one of the rear wheels. The extra weight might make it a bit more tricky to get the car airborne and you can only get on two wheels on one side of the car, so you know, there's a give and take.

Another solution would be to mount one of those sexy X-Cargo units to the roof and modify it with one or two passenger seats. Now, that would be hawt and practical!