post the software upgrade to deal with the 'thermal shock' how many people have replaced their radiator?
MY23, no radiator replacement(s). I obtained the car in November 24 with 850 miles on the clock, took it in to Williams soon after for their 'ready for Winter lanoguard and checkover', then into the factory for a service in March 25. On returning the car MMC commented that they attempted to install a software upgrade but found it had already been done. I suspect Williams did it without needing to be asked when I dropped it in to them.