Luxury means many things to many people, but nobody doubts luxury cars should be crammed full of the latest technology… and what says “technology” in today’s car market quite like “Hybrid”? In a strange inversion of history, Lexus created the world’s first hybrid luxury flagship from a vehicle that was clearly inspired by the Mercedes S-Class, and now Mercedes is fighting back with its first hybrid sedan, the S400 Hybrid. So, is Lexus’s hybrid head-start enough to fend off a challenge from the vehicle that inspired its birth over a twenty years ago? The only way to find out is in TTAC’s most expensive comparison test ever.

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