Do you really need to spend $100k more on an M5? We don’t think so. We test BMW’s M550i.
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The BMW M550i is a lot like the old E39 M5. It’s supple, rides well, is extremely refined – and it packs serious heat from a 4.4-litre twin-turbo V8. These days, the full-fat BMW M5 is a much harder-edged beast than it ever was before. Don’t get us wrong: the M5 is a phenomenal beast. But if you want your V8-powered BMW 5 Series with the kind of rounded liveability an M5 once had, you’ll want the M550i.

But should you buy the 2021 M550i instead of an Audi S6 or Mercedes-AMG E53?

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Time codes:

0:00 - What is the M550i?
1:12 - 4.4-litre V8 engine
1:52 - Interior
5:11 - Back seats
6:38 - Boot space
8:07 - Running costs
9:20 - V8 engine, handling, suspension
20:50 - Should you buy the M550i LCI?