Moin, we have had a Fiat Panda Cross 4×4 with Conti EcoContact 6 175/65R15H 84H (series tyres) for about a 3/4 year. We live in rural areas and have about 600m dirt road to the house. The dirt road is easy to drive with a normal car. The Panda now has for the sixth time (!) a plate. As far as I can remember, the plates are mostly (if not always) front. The cracks (times 0.5 cm, times up to 2 cm) are always in the running grooves. Stones or stony ground. Our second car is a VW up with Bridgestone 185/50R16 81H and here we have never had problems for 5 years. From this I conclude that it must have to deal with the tires of the Panda. Does anyone have an idea what I can do there? Probably other tires, but which? Higher load index? Reinforced? Panda problem? Other idea? Thanks and LG Georg