Hi Andrew,
I am new to the forum but owned Lotus? for over 45 years and had 17 various ones from the original Climax Elite, several baby Elans, both Renault and TC Europas, a few Plus 2?s and the later Turbo Esprit and Esprit Turbo................
I was forced to sell my favourite car of them all a +2s/130 registration FPE 85J when I went into business and the bank manager wanted me to show commitment to my cash flow forecast predicting I would be driving a Rolls Royce within a year.................
I had to just have another +2 it was like someone cut my right arm off..........despite by then owning the Rolls Royce and many other classics the +2 has always had a special place in my collection........
As for which is the best older or later I am going to be biased and say the S is much more luxurious interior and the 130 big valve a much better performance. There is no doubt that 5th gear is a well needed addition like the O/D?s on the other British cars of a similar period, however personally I do not rate the 5 speed box so I finish at the +2S or +2S130.
In saying all this you really have to look at value for money...........like do you want to restore a car or have one ready to drive and enjoy.
The later cars were better/(safer) electrics with additional fuses and relays but generally many problems I have experienced working on classic cars are attributed to owners lack of maintenance or changing/adding features.
I would certainly pay more for a car with a galvanised chassis, mine was changed nearly 25 years ago and still looks like new underneath.
Interior trim is very simple to renew and spruce up, but gelcoat crazing or osmosis bubbles in the paintwork will require major bodywork and paint which is expensive. To be fair though from my pics I have added some extra detail even to the S trim.
To me the mechanics are really simple and apart from keeping oil leaks to a minimum, if you have experience of the baby Elans then you know what you are taking on.
Now as for the driveshafts I bought my Mick Miller ones over 10 years ago and only joined the forum to ask how they have been performing on NVH and general ride quality. I had never fitted mine until this week but they looked as good coming out of storage after 10 years as the day I bought them and I do believe the general quality of parts and ?rubber? was better back then probably anyway.
I do hope your question stays in the general discussions though as for some reason the goderator put mine into repairs and maintenance section then sent me a snotty email asking me to make sure I post in the right section.............like I was not repairing them or maintaining them but wanted to know how people have found they perform on ride quality. Anyway rant over on that subject as not even had he courtesy of a response.
Personally on the test drive I found the new driveshafts a little harsher and probably a little more vibration felt through to the body. In saying that I changed the bearings and overhauled the brakes so probably not really a fair back to back test anyway. Having driven the car for 25 years with donuts I really could not honestly say there was any WOW factor or Bang for the Buck but my car did not have failsafe shafts so I feel more comfortable. What I can?t explain is I have always had a slight diff whine on 3rd/4th over run that appears to have disappeared but again I think I need to drive the car a bit more before finally deciding.
On full droop it was slightly difficult to turn the wheels by hand and the shafts were definitely reaching a point of travel limits with some resistance but honestly I never expect to ever drive the car on 3 wheels and everyone helpfully that replied to my post said they were not a problem in service hence I went ahead and fitted them.
The biggest worry to me replacing today new donuts would be the rubber quality having experienced continual early failure on virtually every rubber part I have bought lately for the MGB I also have. I just hope the Lotus vendor?s parts quality does not end up the same.
Anyway back to your future purchase only you know your own skills and your previous historic knowledge of Lotus Elans.............having owned baby Elans also before I can?t think of anything that is anymore problematic between either baby or +2 or early or later +2s (130/5 that is excluded) just got no personal knowledge of the 5 speed which IIRC was a Maxi gearbox?
For sure though buy early as I have noticed in UK quite an increase in classic car prices in the past year. Still not as high though as when they peaked in the mid eighties but for sure they are going up.
All the best and hope you find something
Regards