Rolls-Royce Ghost vs BMW Alpina B5

What's the difference?

It’s finally happened: Rolls-Royce has become so divorced from the everyday world of common folk that it's no longer even sharing the previously agreed meanings of words. Rolls has its own meanings, possibly its own language, which must be spoken with a plum on the tongue.

They’ve been heading here for a while. For example, at Rolls, “affordable” means the car we're driving today, the Rolls-Royce Ghost Series II, which is yours for just $680,000 (an indicative price, bumping to $800K for the Black Badge). And “iconic British marque” means, obviously, “BMW bought us in 2003, so there might be some German bits”.  

It turns out that “driver-focused” means something different at Rolls-Royce, too. Thanks to a smattering of chassis innovations, Rolls says this updated 2025 Ghost is “the most driver-focused V12 Rolls-Royce ever”. Which is “a side of Ghost’s character that our clients increasingly and enthusiastically embrace”.

Don’t fall for it. The Ghost’s extra focus is not actually very focusy, and its additional dynamism is really only more dynamic in the way that a bed that could corner at all would be more dynamic than a normal bed. None of that matters. 

The reason it doesn’t matter is because the Ghost Series II is wonderful. Indeed, it is very nearly perfect. Which is a word that even Rolls won’t quibble over.

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?