BMW Alpina B7 vs BMW 740i

What's the difference?

You know when you're walking along the footpath and you come to a soft spongey bit that the council have put in around a tree and your mind goes: "Whoah, the ground is bouncy but it looks just like bitumen?!"

Well that's the kind of response you'll get from people when they think they're looking at a regular BMW 7 Series, only to have their world go a bit bouncy when they see the Alpina B7 badge on the back of this car as you're overtaking them at Warp Factor 9000.

And you will be overtaking them like a blur because, thanks to the elves at German tuning house Alpina, the B7 is hugely fast for a five-seat, 5.3m-long, 2.2 tonne limo. But then the B7 is fast for any type of car of any dimensions, because with its 330km/h top speed this beast will outrun a McLaren 570GT. Yes, seriously.

Based on the BMW 750Li long wheelbase, the B7 begins life rolling down the same production line as a regular 7 Series. Alpina then goes on to make so many changes to the engine and chassis that the German government requires the BMW VIN to be replaced with a new one.

Ready to find out more? Well there's so much to see here that things may go a bit weird and bouncy again. Be prepared.

The BMW 7 Series is Munich’s flagship, the car that fans of the blue and white roundel respect as peak plush motoring.

Now, for the seventh 7 Series, BMW has brought electric power to the table in the form of the i7 in order to stay ahead of the curve.

It’s still joined by a petrol-powered variant here in Australia, the 740i, which is a mild hybrid and shares a lot of the luxury specifications of the i7 - including a properly impressive rear seat theatre screen.

But is it forward-thinking enough to fend off the likes of the Mercedes EQS?