dt 25972

[weekendwanda]

I am assuming motor car for 28 across but if so not sure why?
Is it that motor and car are alternatives for vehicle and motor car is the full name?

[Rollo]

Not quite.

Test is the MOT and alternative is OR.

[Simon-Bloom]

Test is the first word of clue = MOT
Concur with your explanation
Motor is a more Formal( formal in clue) name for a car, too.
Good luck weekendwanda, cheers, Simon

[Rollo]

Test alternative vehicle, more formal one (5,3)

Test = MOT alternative = OR vehicle = CAR

more formal one = MOTOR CAR

[weekendwanda]

Thanks just didn't see the MOT! As someone else said earlier - it is often the obvious ones. Thought my explanation was a bit convoluted. Good X word - however.