Big truck. Small car. Huge mistake. Whose?

Semi truck and car accidentThe dash cam of one British driver captured this mishap and it showed up on Express.co.uk. It appears both car and truck were making left turns onto a “dual carriageway” near Leicester, England. The Express wrote, “Both drivers have been criticized with commenters calling them a ‘dumb car driver’ and a ‘stupid truck driver’.” Who do think was at fault?