PAM WHITE of London takes me to task for my 'slightly facetious' remarks on the brave new world of competition in the long-term car parks at Gatwick. 'You fail to spot the real innovation, which is that if you book in advance, the on-airport parking rates undercut the off-airport parking operations. The off-airport car park operators say they are cheaper, but are not cheaper any longer.'

The telelphone numbers for advance booking at Gatwick airport are: APCOA Parking Express 0800 626671; and NCP Flightpath 0800 128128. Seven days' parking pre-booked with Parking Express costs pounds 22.05 (14 days, pounds 42); Flightpath's rates are cheaper: seven days, pounds 20.30; 14 days, pounds 40.50.