Optimus Prime Peterbilt

A fan built replica of the Peterbilt Optimus Prime is for sale on eBay. At the time of this writing the bid was at $55,400. Sadly the builder wasn't able to develop transformation technology for the truck but based on the below list of accessories, apparently threw in lots of features to make up for it.

Accessories include:
-Voice activated alarm, with the voice of Optimus Prime on lock and unlock mode.
-17 inch LCD TV/DVD
-JVC JAVX33 Stereo CD/DVD player with Bluetooth and Satelite Radio ready
-Infinity Sound system, speakers and subwoofer
-New Memory Foam mattress in sleeper
-Custom 2 tone(red and blue) gear shift with flames
-Legacy Low profile leather bucket air Seats
- All pedals are chrome with rubber flames
- Custom interior with two tone (blue/red) flames
- Wood floors
- Chrome wheels with new virgin tires 285/75R22.5.
- All switches, buttons light covers, speaker covers, arm rests and steering in chrome
- Chrome columns and wood steering wheels with flames
- Dual Chrome 7 inch stacks
- Chrome Sunvisor
- Brand new accessories and new, top of the line, custom Sherwin-Williams automotive paint Base coat/Clear coat.
- Too many features to list, the only thing it can't do is transform!!

The auction and tons of additional pictures can be found here.
(source)