Car crash right outside my house

I heard loud screeching of tyres, then a big thud. Within 3 seconds I was at the front window to see what had happened. First there was a big cloud of dust that quickly blew away, to reveal.... OMG! I grabbed the camera that was all charged up for the U2 concert and went out to take a pic. There was lots of neighbours coming out to view the carnage too.

No idea how it happened. No other cars involved at all.