Subscribed as an avid 5 owner, and I'll be at castle combe in the paddock hopefully for round 7&8 of the ma5da champs so may come and say hello
And as we run ff1600 cars at college, I can certainly tell you you're correct when you say repairs aren't cheap. Definitely more than your average saloon racer. One of ours had a big off in the last race of the year in october and 3 corners were off and the floor pan wasn't looking too pretty either. So it's now currently sitting as just a shell. Awaiting many expensive suspension bits and a whole new floor.
Single seater racing is 90% repairs, 9% wondering wtf is going wrong and 1% racing