United Kingdom, Oct. 21 -- Millions of passengers in South East England have benefited from an Alstom-facilitated £100 million train upgrade project - the biggest in the UK - with the final unit having rolled off the production line.The 304th Electrostar train in the scheme - known as Project Aurora - rounds off the programme which has completed on-time and on-budget over the past five years at Southern's Selhurst depot in South London. It has brought reliability and onboard benefits for passengers on franchises operated by Govia Thameslink Railway (GTR): Southern, Gatwick Express, Great Northern and Southeastern.As the UK's leading supplier of new trains and train services, Alstom provided technical specification, design work and mate...