Maybe you could try this..
"Regular MOTs are a must for any vehicle. Yet as their max cost is fixed at £54.85 for cars, it's not the test fee but repairing the fails that makes the biggest dent.
If you've had problems with Del Boy dealerships in the past, little-known council run MOT centres don't do repairs so there's no vested interest to fail you.
The UK council MOTs list includes over 100 test centres to give your vehicle the best chance of passing. Thousands report a massive difference; here's one MoneySaver's story:
My usual garage said to make it pass its MOT, repairs would cost almost £1,000. Following the article, I took it to the council test centre instead and it passed without any work needed."
Not tried it myself, courtesy of "www.moneysavingexpert.com"