Times (UK): Car companies are raising false hopes of emission-free motoring in order to continue profiting from large, fuel-hungry vehicles, according to a study. Cars powered by hydrogen fuel cells are not expected to be available widely until after 2050 because of the high cost of the platinum in their catalysts. Battery-powered vehicles will also remain a niche product because of their limited battery life. The University of Oxford study, edited by Sir David King, the Government’s …