It's not Chris Evans but here are some close up shots of his stunt double in the Captain America costume filming a chase scene on his trademark bike as well as some pictures of two very futuristic looking HYDRA motorcyles and riders in pursuit...

UPDATE:

British newspaper,, have got their hands on some truly amazing pictures from the a London countryside filming location ofand here is an excerpt of their report as well as each of the downright amazing looking pictures! There are plenty of great details on display here including wings on Cap's helmet (almost identical to those seen recently in "Captain America: Reborn") as well as some downright strange looking bad guys who if you look closely enough have the HYDRA symbol on both their bikes and on the hood ornament of the car!Here are some more pictures from the set giving a better look at both Cap's shield and a closer view of the costume courtesy of