The 4000 Series was manufactured by CAF and delivered starting in 1987. The cars are in 5 car sets and have been rehabbed to extend their useful lives. They operate on Line 1.
CAF 4000 Series 4009 at Clot, June 7, 2008
CAF 4000 Series 4009 at Urquinaona, June 7, 2008
CAF 4000 Series 4064 at Can Serra, June 7, 2008
CAF 4000 Series 4089 at Clot, June 7, 2008