BMW Alpina B5 vs BYD Sealion 8

What's the difference?

The BMW Alpina B5 Bi-Turbo is not actually a BMW. Not according to the German Federal Motor Transport Authority, at least.

Nope, the modifications applied by tuning house Alpina to the 5 Series are deemed so significant that if you open the bonnet and look inside the engine bay, you'll see that the BMW VIN has been struck through twice and an Alpina vehicle number stamped underneath it. 

The B5 is not the first model to be recognised in this way, either; the German government has recognised Alpina as a seperate car manufacturer since 1983.

The B5 has other ‘B' siblings, too. There's the B3 S Bi-Turbo, which is based on the BMW 3 Series, the B4 S Bi-Turbo (the BMW 4 Series) and the B7 Bi-Turbo (I don't need to tell you what this is based on, right?) which I've reviewed, too.

So just what has Alpina done to this unsuspecting BMW 5 Series? Is it really worth the extra money? How does the B5 compare to an M5? Could it actually be superior? And did they really take the speed limiter off to let it warp-speed to beyond 300km/h?

As the flagship variant, the BYD Sealion 8 Premium all-wheel drive makes a big first impression as it arrives with seven seats, a plug-in hybrid powertrain and a features list that reads like a wish list.

It’s also stepping into a competitive space, lining up against the Chery Tiggo 9 Super Hybrid, Kia Sorento GT-Line PHEV and Mazda CX-80 P50e Azami - all promising similar blends of efficiency, space and value for Australian families.

The Sealion 8 Premium looks like a strong contender on paper … but does that translate to the real world?