Lol I must be getting old as I still love the looks of both
TBh the Chims are not as unreliable (yes some have poor build quality) as the speed 6 and AJP cars which do need rebuilds on a regular basis, there are plenty of Chims well into the 100,000's without a rebuild and still going strong, for this though its plenty of old fashioned preventative maintenace which to I actually quite enjoy.
Working on the zed for some reason scares the crap out of me but when I was running about in my older cars I had no probs stripping engines down and generally keeping things running smooth :-) :-)