Driven: Alpina B5 Biturbo Touring

We review Alpina's take on a BMW M5 estate, the supremely fast B5 Biturbo Touring

Evo rating
  • Superb engine, luxurious feel
  • Steering feel, throttle response

What is it? The Alpina B5 Biturbo Touring, an estate version of the BMW tuner’s take on the M5. Prices start at £75,850. Technical highlights? A monster twin-turbo 4.4-litre V8 engine sends 500bhp and 516lb ft to the rear wheels. It’s linked to an eight-speed ZF automatic gearbox that swaps ratios in 0.18sec and boasts auto, sport and manual modes.  There’s a piece of technology called single-cylinder fade-out, which sees the injection of fuel into a given cylinder very briefly interrupted during gearshifts. This speeds them up, cuts fuel consumption and adds an extra burble to the exhaust note.  Direct injection and variable valve timing also help contribute to 252g/km and 26mpg claimed figures, impressive for a near two ton, eight-cylinder car. What’s it like to drive? Alpina’s products tend to be a less hyperactive but still shockingly fast take on the M car. And Alpina is actually ahead of BMW, who is yet to release its new twin-turbo 4.4 M5. The B5 performs well, though; in more relaxed use it rides well (the suspension can be set to Comfort, Normal, Sport and Sport+) and its supremely torquey engine and smooth gearbox make it a cracking long distance partner. Turn onto a more interesting road and it continues to impress. The steering lacks a bit of feel, but you can still position the B5 accurately, and there’s a lot of lateral grip. Pace between corners is electric, but throttle response could be better. There’s a slight delay between prodding the accelerator and the V8’s surge appearing, one which makes toying with the B5 trickier than it could be. In either of the suspension’s sportiest settings, though, this is a more capable back-road car than it first looks. How does it compare? The nearest alternative is the Mercedes-Benz E63 AMG Estate. £76,020 buys you a 518bhp/464lb ft 6.2-litre naturally aspirated V8, a seven-speed automatic gearbox and up to 1950 litres of bootspace. The Alpina offers up 1670 litres but is a more exclusive and arguably more interesting car. Anything else I need to know? There are no plans to introduce a new M5 Touring, so this could be your only chance to own a big high-performance BMW estate. Also, that E63 AMG soon gets a twin-turbo 5.5-litre V8 engine with more power and equal torque to the Alpina.

evo's work experience blogs on experiencing the Alpina sideways

Specifications

EngineV8, 4395cc, twin-turbo
Max power500bhp @ 5500rpm
Max torque516lb ft @ 3000rpm
0-604.7sec (claimed 0-62)
Top speed188mph

Most Popular

New Audi RS3 revealed – AMG’s A45 S rival returns fitter and faster
2021 Audi RS3 Sportback – front tracking
Audi RS3

New Audi RS3 revealed – AMG’s A45 S rival returns fitter and faster

After months of tech insights, we now finally get to see the all-new Audi RS3 in its finished form
19 Jul 2021
Lotus Emira makes world debut – all-new coupe to rival Alpine A110
Lotus Emira
Lotus

Lotus Emira makes world debut – all-new coupe to rival Alpine A110

Lotus's first all-new car for a quarter of a century comes AMG power and sub-£60,000 price tag
13 Jul 2021
Porsche 911 GT3 Touring 2021 review – pairing the magnificent 992 GT3 experience to a more subtle audience
Porsche 911 GT3 Touring 992 review
Porsche 911 GT3

Porsche 911 GT3 Touring 2021 review – pairing the magnificent 992 GT3 experience to a more subtle audience

There are few, if any, more rewarding, engaging or intense experiences for those in pursuit of the thrill of driving
14 Jul 2021