Aston Martin likes to forge ahead. While Hollywood is still struggling to find the next James Bond, the British sports car manufacturer has unveiled a new Vanquish that could well end up on the big screen one day. The third generation of the Gran Turismo will be available later this year starting from around £330,000/€386,000, the manufacturer has announced. A potential rival to models such as the freshly revised Bentley Continental GT or the new Ferrari 12Cilindri, the Vanquish is set to be the most powerful series-produced model from the British maker to date. Like the Italians, the Brits ar…