coldel said:
To be honest, over the years, I have found out lots of things about cars, and that one thing I don't scrape a few quid off of is tyres. Tyres and brakes should always take your hard earned over engine mods, aesthetics etc. It is what keeps you on the road and stops you.
So when I look at tyres and see a set of four costing 600 or 800 pounds I take the 800 every time. Assuming there is a difference to be had in terms of how they perform. Owning a car worth thousands if not tens of thousands, why scrimp on a couple hundred quid.
There are always deals to be had out there, I bought and got fitted x4 Michelin PS4's for £440 in a deal on Blackcirlces doing money off Michelins when I had my E86 a couple years back.
Ultimately safety is generally all our priorities, and by paying a couple hundred quid more I can increase my odds of not hitting something should the need arise, then I pay that.
You could also improve your odds by spending £5k on brake upgrades, or by never exceeding 30mph, but you have to draw a line somewhere. Just by buying a Z4, you've already compromised safety in the pursuit of having something fun to drive. If safety was the number one priority we'd all be driving an Ora Funky Cat.
How much do your odds of having an accident actually decrease by using Michelin over Kumho? I'm guessing somewhere between not at all and very, very small fractions of a percent, if you're a normal driver in a normal car.