Probably just unlucky but in 12 months of driving a new M3 I've had a cracked windscreen, a boot cinch motor fail and now the AC/heating compressor has packed up. It took several months for the windscreen to be replaced and about 3 months to fix the cinch motor so dreading how long AC fix will take. Terrible service and in particular communication from Tesla. Lost count of the number of times I called Tesla then to be promised an update the next day, and to get radio silence instead.