JCB unveils 208mph hydrogen digger for record run   •   Shell reinvents small electric car with efficient concept   •   Horsepower called flawed car performance measure   •   Cars Sold Under Different Names Abroad   •   Inside firm improving engines to accelerate net zero   •   JCB unveils 208mph hydrogen digger for record run   •   Shell reinvents small electric car with efficient concept   •   Horsepower called flawed car performance measure   •   Cars Sold Under Different Names Abroad   •   Inside firm improving engines to accelerate net zero   •