Tires are very important to me. And in my experience, Michelin is always one of the better ones; a good combination of reasonable lifespan combined with good grip, good performance, not too noisy, and acceptable comfort. A good overall package. A new criteria is on my list for tires! Efficiency! On the Tesla electric car, we worry significantly about tire efficiency, as some tires have high rolling resistance and therefore aren't very efficient. Michelin recently announced they're coming out with an "Electric Vehicle" tire that will focus on efficiency priorities and low noise (since electric cars are quieter, you hear more wind and tire noise).