M4 corridor bridge, serving Chepstow, being renumbered the M48, although the area is still generally considered as falling within the M4 corridor. Since the start of the 21st Century there has been evidence of more investment west of Cardiff, such as: M4 corridor The M4 corridor is an area in the United Kingdom adjacent to the M4 motorway, which runs from London to South Wales. It is a major high-technology hub. Important cities and towns linked by the M4 include (from east to west) London, Slough, Bracknell, Maidenhead, Reading, Newbury, Swindon, Bath, Bristol, Newport, Cardiff, and Swansea. The area is also served
BMW M4 DTM BMW M4 DTM The BMW M4 DTM is a DTM touring car constructed by the German car manufacturer BMW. It was developed in 2013 and has been raced in DTM seasons since 2014 through 2018 before being replaced by turbo-updated BMW M4 Turbo DTM. It was designed by BMW chief engineer Dominic Harlow. The M4 DTM, which replaced the retired BMW M3 DTM at the end of the 2013 season, is based on the production BMW M4. The first model made its first appearance in the wind tunnel at the BMW Group’s Aero Lab on 22 April – 13 days