Involuntary autocorrect in operation on mobile device. Apologies in advance.
sbiddle:dickytim: Front or rear to have the best tyres, I had always been told put the new tyres on the front as that is where the steering happens. I guess there could be arguments for both schools of thought.
In the old days this used to be quite a topical point of discussion. With any modern front wheel drive car you have to be absolutely crazy to do this - the deepest tread should always be on the rear to prevent hydroplaning and I'd be surprised if you found a single tyre retailer these days that would ever allow fitting of new tyres to the front of a modern front wheel drive car.
In wet conditions the tyres with the least tread will aquaplane first. If the tyres at the front have the least tread your car will understeer, If the tyres at the back have the least tread your car will oversteer. Recovering from oversteering caused by aquaplaning caused by is vastly more difficult than understeering caused by the front wheels aquaplaning. If you've ever driven a skid pan in the wet you would appreciate this even more!
Hammerer: When my front tyres start to squeal while cornering that has always been a good indicator that I need a wheel alignment.