Thanks Simon et al! I wrote a huge reply but it seems the site was undergoing an upgrade so I lost the post! It was a work of flowing prose on all the cars, so now I will have to start again... My post will be considerably shorter but probably more to the point.
I really don't want to sell the Gordini Turbo - was just trying to be a bit sensible. Yours looks fabulous by the way!
The 123-ignition distributor is great! Really easy to tune. I have a terrible misfire right now that I want to sort, via:
http://www.ebay.co.uk/itm/Magnecor-...439417?hash=item1e8ca1e679:g:TI0AAOxyYANTX3MY
And:
http://www.ebay.co.uk/itm/4-X-DENSO...hash=item2320893646:m:my7CIUHJVhfG6vLVG6rJ3rQ
I like the idea of the Magnecor leads - one of the problems I identified recently was the sparks arcing through the sides of the spark plug extensions - sort of punching a hole through them! And I have always had trouble with NGK plugs in R5s, even the standard TLs, but I couldn't find the original platinum ones a few years ago, so I am very excited by the prospect of the iridium ones.
When fitting the 123, be careful everything is aligned correctly - I was 180 degrees out - you have to fit the drive gear thingy to the shaft yourself and it's easy to get it the wrong way round - it's offset, but not by much, so is difficult to see. I also managed to fit it to the car 180 out so the engine backfired like crazy until I figured that one out! The advantage of the 123 is that you can dial in much more advance off boost. The standard curve is very conservative off boost, which leads to comparatively poor performance. The car feels so much more alive now off boost! And also it should be more reliable than the rubbishy Renix thing.
The T2 - no, I don't find it wears thin. I am always reminded of how special it is. It feels so planted on the road, quite unlike the Gordini (which feels like it is trying to chuck you into the nearest hedge!). The T2 just feels solid. Not really had any major problems with it - it's pretty easy to live with, but could get expensive (clutch, etc.) and the need for specialist parts means searching a bit further afield, but most things are available. It garners a lot of attention (most people think it's either a fake or has a V6, oh the uneducated masses)!
The A610? 3.0L V6 Turbo, rear mounted behind the wheels. 250bhp and loads of torque. Fabulous! It's quiet and comfy. The refinement really reduces fatigue on a drive. Definitely the best seats on any Renault I've been in! It has niceties such as air con (when it's working - it's not at the moment) and ABS (which is working - unusual for one of these). When you put your foot down, the V6 sounds absolutely lovely. It's a smooth unit under load and revs very cleanly. You can hear the turbo as it's right behind the passenger bulkhead. The gearbox is superb, very easy to cleanly slot between the gears (ooer!). It just feels right. There's very little turbo lag. Weight distribution is 43/75, so it's pretty well balanced too, although I am always cogniscent of the engine hanging out the back! Not a car to be thrown into corners in the wet. Unlike the Quadra of course, which is incredible as far as grip is concerned (until you lose it, then you lose all four wheels at once, as I learnt to my cost and the detriment of a couple of fence posts and a couple of lights and body panels)!
I am tempted by this exhaust for the 610:
http://www.ebay.co.uk/itm/RENAULT-A...128692?hash=item3f55112d34:g:nEgAAMXQgyZSBMd6
Which you can hear here:
I hope that makes interesting reading. Oh by the way, I asked my daughter which car I should sell. Bearing in mind she is 10, this was her reply: "You can't sell any of them, Daddy, we love them all! They are so different and each one has so many memories associated with it!"
Andrew