M4 motorway not signed, European route E30 includes most of the M4. The M4 has two sections of smart motorway. The one between junctions 19 (M32) and 20 (M5) north of Bristol has variable speed limits and a part-time hard-shoulder. Completion was in summer 2014. The section between junctions 24 and 29 in Newport has variable speed limits. In 2010 it was announced that a smart motorway would be constructed between junctions 3 and 12, with work starting in Autumn 2018. This will be the longest smart motorway scheme in the United Kingdom, with a length of 51km (32 miles). Work is
M32 Tank Recovery Vehicle It was also used during the Korean War. It was phased out after the introduction of the M74 Tank Recovery Vehicle in 1954, when heavier tanks were produced, such as the M46 Patton. The M32 had a winch, boom, and an A-frame jib. It was armed with two machine guns and a mortar mainly to provide cover for an emergency retreat. The M32 Tank Recovery Vehicle was an armored recovery vehicle based on the chassis of the M4 Sherman, adding an boom, an A-frame jib, and a winch. It was long, adding when the boom, which is used to lift