Wikipedia
The Tram Power City Class Light Rail Vehicle (also referred to as the Citytram) is a prototype two car articulated electric tram previously tested on the Blackpool Tramway It operates off a power supply between 550 V and 800 V DC. Blackpool at the time operated at the lower voltage of 550 V DC, whereas most modern tramways use a 750 V DC supply to provide enough power for heavy LRV typically drawing 1500A on acceleration. The City Class tram is notable for being Blackpool's first LRV, Blackpool having had classic tramcars running since 1885 continuously to the present day. The Vehicle however failed to complete its testing when shortly before certification for passenger operation was to be granted it burst into flames while returning to the depot after a full day of operations, the incident encouraged Blackpool tramway to look to other vehicle manufacturers for its new fleet. The designers Tram Power have sought to market the design and technology as a cheaper alternative to more established manufacturers.