It is hard to live up to expectations if you label a group of traius 'Superfast'. Great Western Railway has used the title to describe its innovative extra traius from London to Bristol Temple Meads and Cardiff booked non-stop from Paddington to Bristol Parkway and vice versa. The distance to Parkway is 112miles with a typical gross schedule, for example that of the 12.45 from Paddington, being 69min at an average speed of97mph.