This is a 2013 BMC Time System. The body hasn’t ever been used and is modern. So are the handlebars (Zipp SL70 Aero) stem (Zipp SL Sprint 120mm), bar tape, seat (Prologo Kappa Evo), BB, Cassette, Crankset (Dura Ace 9000 172.5mm) and QR skewers (Shimano Ultegra).
The Dura Ace Di2 9070 groupset is used however slightly and the battery is stressed internally (seatpost).
The Mavic Cosmic SL wheelset could also be used however in nice form. It comes with modern tubes and tyres (continental gp 4000s ii)!