The mans Suzuki motorbike collided with a silver Mercedes on the A39 at Blackmoor Gate at around 1.24pm. The motorcyclist, aged 48 and from Dorset, was airlifted to Derriford Hospital with life-threatening injuries according to Devon and Cornwall Police, which has urged witnesses to come forward. A spokesman said: Local officers as well as officers from the roads policing team, and serious collision investigation unit attended the scene. The driver of the Mercedes a 60-year-old male from the London area and a female passenger in the car were uninjured. Anyone with information is asked to contact the police on 101 quoting the log number 454.