In the near future, all new vehicles will be delivered with a rich array of built-in communications and semi-autonomous features. Many existing vehicles will be retrofitted with such systems.
Road-vehicle powertrains will increasingly consist of extended-distance electric drives and hybrid engines (petrol/electric). Hydrogen-powered cars will be produced in the near future, but lack of filling infrastructure will hold back wide-scale adoption. Internal combustion engines will continue to be used for road transport for the next 20 years, but new technologies such as laser fuel-ignition systems (replacing spark plaugs) will yield ever greater economy and fewer greenhouse has emissions.