Complex sentence: One of the coaster's cars was put on eBay by Alton Towers to raise money for charity and was sold on 15 December 2008 for £7,200.
Split into simpler sentences: One of the coaster's cars were put up for sale on eBay by Alton Towers to raise money for charity. The car was sold on 15th December 2008 for £7,200.