My old Benz is on its third set of Michelin MX1 Energy (made in Thailand). They generally need replacement at about 70,000 km, which is quite reasonable I think. Not a bad compromise imo between grip, wear, and purchase price.
The longest lasting tyres I've had were the low-priced 'Elite' brand, made in New Zealand. These were a favourite of taxi operators, being of deep tread and hard compound, although in honesty they weren't toooo bad in the grip department. I fitted two sets of Elites to a Holden V8, replacing the second set at 198,000 km for a genuine average of almost 100,000 km per tyre!
Least durable was an admittedly hard-driven set of OE-fitment Bridgestone Potenza 225/50/16 back in the mid 1980s, on another Holden V8. Despite being rotated to even up the wear, they lasted just 19,000 km. As mentioned in previous posts, these tyres also went 'off' (after being overheated, I suspect) with much reduced grip and feeling very greasy and skatey from about 15,000 km.
Shortest lifespan ever goes to Pirelli Phantom motorcycle tyres, also from the 1980s, on the back end of my Ducati 900 bevel-head. I had many sets of Phantoms, from memory the average mileage on the rear was 2,400 km, with the worst being a mere 1,900 km - or just under one month on the bike! Btw those Pirellis were a top tyre at the time (very soft compound), costing twice as much as typical car tyres - albeit cheaper than hospital bills.
