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
M32 Tank Recovery Vehicle tracks which gave the vehicle insufficient flotation to move over poor terrain such as mud and the power of the engine was insufficient to pull large tanks, such as the M26 Pershing. Some M32B1s were also shipped to Britain under Lend-Lease, where they were designated the ARV Mark III by the British Army. The Ordnance Department attempted to replace the M32 with the T12 Armored Recovery Vehicle in 1944 in M26 Pershing companies, but the T12 became too expensive, and so was never put on the production line. The M32 was also planned to have mine-exploding equipment, such as the