I was 2 times in China and made GPS data loging at all journeys. Taxi driver on the highway to the airport 96 km/h (60mph) maximum. The fastest was 117 km/h on the highway with a convoy of government vehicles escorted by police.
Such high speeds as the Nissan at the accident are very unusual in China.

The Nissan is 1,7 tons heavy. At this impact, it is very likely that the 3 already died by whiplash before the car burned some minutes later.

The German photovoltaic feed in law estimated 2004, that building up the market will decrease cost by 5% a year. So they decided to reduce the feed in tarifs for new systems each year 5%.

2008 they found, that industry decreases faster costs as expected. 10% less per year.
http://politics.pege.org/2008-d/photovoltaic-eeg.htm
The feed in tarifs should have been 32,77 Cent per kWh

2010 they found, that industry even faster decreases costs.
Now they reduce the feed in tarif for new systems to 19 Cent per kWh.

Let's hope this fast unecpected progress happens also at the batteries.