I have an unhealthy interest in TA01/TA02 derivatives, I like them because they are so easy to tweak and modify, lots of interchangable parts. I like a challenge and don't usually build anything standard.
My interest started when I was given a partially built Porsche 934 with lots of spares by a friend about 20 years ago. I ran it for a while until the radio gear failed, I then put it back in the box and put it in mum's attic. A few years ago I dug it out again and after doing a bit of research (mostly on this site) realised it was too rare to use so I sold it on ebay. I then used the cash to fund my other RC projects.