One passenger, a 19-year-old man, died, another sustained serious injuries.
A 32-year-old man's being questioned on suspicion of causing the death by dangerous driving of a teenager in Bradford.
It follows an accident on Harrogate Road in Undercliffe on Sunday where a VW Golf crashed into two cars.
Bradley Aldridge, 19, died, another man sustained serious injuries.
Detectives in the Major Collision Enquiry Team are appealing for anyone who witnessed the collision or anyone who saw the vehicles involved driving in the area prior to the collision to contact police.