The British carmaker Lotus produced a record number of sports cars in the first half of 2023, as it gears up for a huge push behind sales of a new electric SUV under its Chinese owners’ expansion plans. Lotus, which marked its 75th anniversary this year, produced 2,200 vehicles in the first six months of the year at its factory in a former second world war bomber factory at Hethel in Norfolk. The bulk of the vehicles built were the Emira sports car, the first new Lotus product since the…