BMW - no-one left to pass the buck to?

OK, so you want to buy a BMW X5? Onto the BMW Virtual Dealer web-site to spec the car. Errors logging in but eventually manage to do a config. Save it - more errors. A month or so later, same and other problems. Web-site also intermittently unresponsive. Email support - no acknowledgement of receipt, no action. Keep trying over a few weeks - nothing! Report via dealer. Get a phone call that problem is escalated to IT dept. Wait.. but nothing further. Find MD Tim Abbott's Twitter page claiming BMW is now world's most reputable brand - add sarcastic comment. Call BMW - go through to \director's line". Someone actually listens to me! Suggests I email him. Take opportunity of emailing details of 5 years of disgusting service. Get no response. Email again"