OK, I can see the sense in that (although a hard-worked taxi can rack up 50,000 miles a year, so a first (statutory) MOT at 200,000 miles might be a bit scary! I think most taxi licensing authorities tend to insist on a "council MOT" every year (some every 6 months) from new anyway), but reps doing big miles might still be a problem.First test at 4 years. Most defects at three years are the sort of things that could happen at ant time - wipers, washers, bulbs etc. Any high mileage 50,000 miles a year rep cars would, I assume, be serviced more frequently.
Did you submit a preference on any of the other questions? I think I could get behind a reduced frequency if the tests were tougher.
(And obviously, no MOT for any Italian car over 30 years old...)