Here is a video taken in December 2003 at my local park.
The Marder is fitted with the Beetle body and has a Zenoah G260 engine with the FG tuned pipe.
The Marder is quite loud in the video because the pipe has come loose from the header but I thougth it sounded much better so carried on driving while my friend was filming.
The video is about 10Mb in size!!
http://www.rcpics.net/view_single.php?medid=21964
Greg