Which high-speed rail service underwent a complete rebranding in 2016, changing its logo from a red arrow to a stylized 'e' symbol while also introducing a new livery and onboard experience?

In the competitive transportation industry, branding plays a crucial role in shaping consumer perception and loyalty. Rail companies worldwide have undergone significant brand transformations to modernize their image, improve customer experience, and reflect changing service offerings. This trivia question focuses on a major rebranding effort that revolutionized public perception of high-speed rail service. Test your knowledge of transportation brand evolution!

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Eurostar (connecting UK with mainland Europe)
Shinkansen (Japan's bullet train network)
Acela Express (Amtrak's premium service)
TGV (France's high-speed train)