"It is being put up for sale by Manchester businessman Paul Ashbee - the man who used to employ Liam as a car-valeter and introduced the singer to guitarist Bonehead, thus kick-starting the band which eventually became Oasis."
Now, how the fuck are you gonna valet someones cars when you dont know how to drive? End of.
This is just a poncey way of saying Liam used to wash cars. 'Valeter' over here doesn't mean the same thing as 'valet parking' in the US. Basically he'll have stood somewhere like the forecourt of a petrol garage and washed cars. No driving skills required.
Liam can't drive. Both Gallaghers are car incapable.