Nope, a Bugatti Veyron has a W16 8.0 Litre engine with BHP 1,001 capable of reaching around 408-409 kph in around 56 seconds. (0 - 100 kph in 2.5 seconds)
One of the companies who makes W12 engines is Volkswagen, som of the cars which uses the volkswagen W12 is volkswagen Phateon, Audi A8, and Bentley
239 kg or 526 lbs
The 2014 Bentley Flying-SPUR has a W12 engine.
The 2008 Bentley Continental-GTC has a W12 engine.
The 2012 Bentley Continental-GTC has a W12 engine.
The 2009 Bentley Continental-GT has a W12 engine.
The 2005 Bentley Continental-GT has a W12 engine.
The 2008 Bentley Continental-GT has a W12 engine.
The 2010 Bentley Continental-GTC has a W12 engine.
The 2009 Bentley Continental-GTC has a W12 engine.
The 2006 Bentley Continental-GT has a W12 engine.
The 2012 Bentley Continental-GT has a W12 engine.