Is it legal to park on the pavement?

If I park on a wide pavement with double yellow lines painted on the road an I technically parking on double yellow lines? My son parked his van on a wide pavement so wasn't blocking either the pavement...

Should I buy a used Lexus with a gap in the service history?

Should I buy a 2017 Lexus which has five Lexus dealer services in the record although there's a gap of 3 years? The car is being sold by a Lexus dealer.

Can I buy a hybrid even if I don't use it during the winter?

I am looking at a Toyota Yaris, the car will not be used in the winter months and garaged. Will this affect the life of the lithium batteries if not used for four months each year?