Which high-speed rail service rebranded from 'Eurostar' to 'e320' for its new train fleet, emphasizing its 320 km/h top speed while maintaining its primary company name?

In the competitive transportation industry, effective branding can transform market perception and customer loyalty. One particular high-speed rail service underwent a complete rebranding in 2015 that increased ridership by 30% within a year. The new brand identity focused on speed, reliability, and modern comfort - fundamentally changing how consumers viewed rail travel in its region. Test your knowledge about this remarkable transportation branding success story!

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Eurostar (connecting UK, France, Belgium, and Netherlands)
TGV (France's high-speed network)
Shinkansen (Japan's bullet train system)
Acela Express (Amtrak's premium service in the USA)