Jonathan Campbell gurgled happily, sounding
much like they were saying:

is a spare not a legal requirement any more?

It's as much a legal requirement now as it ever was. It's also just as
MOT-testable now as it ever was.

Not specifically mentioned here (Northern Ireland, which, oddly, has a
different MOT regime):

Don't worry - it's the same with the MOT over here, too.

http://www.motinfo.gov.uk/htdocs/m3i00000101.htm