STUTTGART, Germany—Mercedes-Benz’s experimental electric car, the Vision EQXX, broke its own efficiency record in June, travelling 747 miles from Stuttgart, Germany, to Silverstone, UK, on a single battery charge.
After departing Stuttgart, the Vision EQXX crossed the French border near Strasbourg, then cruised across northern France at highway speeds to Calais, where it boarded the Eurotunnel. Continuing its journey in the UK, it took the M25 around London then stopped off at Mercedes-Benz Grand Prix in Brackley.