What, do you mean cars? That's because in rural Ireland they can't be arsed taking for test, so you'll probably find it's enforcement rather than the test. (which isn't quite a walk in the park as a MOT, but not that much of a PITA either.)
Had an Irish chap buy my Hyundai i20 last week.
Said the reason for buying from the UK was that the cars were far better looked after and serviced in general.
He was incessantly calling on the phone to me on Tuesday, while I was in a meeting and couldn't take the call - plus it was £1.20 per minute to receive the call - I'm Scottish FFS!!! - I thought, WTF is up with the car?
Called him back a couple of hours later and it turned out he needed the front page of the V5C to register the car, the part that says it's to be retained by me supposedly...? He was flapping big time, as he thought I'd sent it off to Swansea...
Anyhoo, as I'm in Dubai, I got the GF to pop it in the post for him. He was chuffed to bits with the car, which is for his daughter supposedly.