My lads have them in their cars but only 17.5 ones I have a 8.5 in my Vintage. Excellent for the little use they've had, pointless spending £90 On a motor if you aren't doing brca regionals with them and just club Racing id say for for it.
Also, there are plenty people on here with more money than sense
that sell low usage stuff for half the price of new. I got a motor for £15 admittedly not in the best condition but I've done a load of meetings with it