Originally Posted by
Garage19
I wouldn't call a £1500 rear beam cost effective. Especially if its not ideal for what you want to do with it. Mark is a very competent engineer and i suspect what ever option he chooses he will be making himself so that gives him free reign over the design.
The MOT station doesn't care what design your rear suspension is as long as it in good condition ie no play in bearings and doesn't bind. There are plenty of cars with de dion set ups that pass mots every year.
No need to get excited. Lighten up!

You completely missed my point...
I know that it doesn't matter what you have for an MOT

I was pointing out that going for all the expense of replacing the whole rear end design on a car that spends less than a minute of every year doing quarter mile runs is a bit excessive.