Chrysler 300 vs BMW Alpina B5

What's the difference?

You may be sensing an increasing level of hype around hybrid and full battery-electric vehicles. In fact, it feels like the automotive world has gone full-fat bananas over ‘electro-mobility’.

At least car manufacturers have, with Tesla’s entertaining antics disrupting the status quo, and causing virtually every mainstream brand to get on board the zero-emissions express.

But of course, the other side of that equation is demand. The rush to meet ever tightening emissions regulations (and save the planet in the process) fails to recognise the fact that not everybody wants a ZEV… yet.

The days of big-bore, more is good, internal combustion propulsion aren’t over yet, and Chrysler, like the rest of the ‘Murican Big Three’ is keeping traditional muscle car enthusiasts happy.

In fact, we’re in the midst of a US horsepower arms race not seen since the late 1960s and early ‘70s, and Chrysler’s SRT (Street & Racing Technology) performance subsidiary is leading from the front with a variety of over-the-top Hellcats, Demons and Red Eyes.

Australia has recently picked up a whiff of that action with the utterly mad 522kW Jeep Grand Cherokee Trackhawk, but the only slightly unhinged SRT version, and this car, the Chrysler 300 SRT, have been around for some time.

Launched here in 2012, the second-generation version of the 6.4-litre naturally aspirated sedan was discontinued in the USA in 2014. But sensing a large sedan-sized opportunity as local manufacturing from Ford, Holden and Toyota went the way of the Dodo, the local FCA team negotiated a continuation deal.

Think of the 300 SRT as America’s M5 or E63. A full-size performance sedan with a thick layer of luxury laid over the top, but at around one third the price.

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?