Ahhhh, this brings back memories :) By KuhnIndustries.
The time machine from back to the future... fully rigged and detailed. This is a big file (~400K polys), but there's a lot of work here. The wheels pivot and move for the "Hover Conversion", and both doors open with a simple rig controller. The interior and undercarriage are fairly detailed as well. It was hard to find good reference pics for the undercarriage of the "hover" version, so I sort of made it up :)