Skip advert
Advertisement

Saab 9-5

Bioenthanol boosts power and cuts emissions, but few outlets sell the alternative fuel

Find your Saab 9-5
Compare deals from trusted partners on this car and previous models.
Or are you looking to sell your car?
Value my car
Fast, no-nonsense car selling
Value my car

Bioethanol boosts power and cuts emissions, but few outlets sell the alternative fuel. While the 9-5 can happily run on unleaded, its £600 price premium and dated dynamics make the BioPower Saab a clever but unappealing prospect – unless you live next door to a garage that stocks the green stuff.

Advertisement - Article continues below

Alternative fuels and green technology are big news these days – barely a week passes without the introduction of yet another new eco-friendly solution that’s promising to save the world.

But until a single system or idea steals a clear lead on the rest, deciding which to put your money on is a lottery. Choose the wrong one, and you could end up losing out in a big way.

Bioethanol is one of the latest options, and along with the Ford Focus Flexi-Fuel, Saab’s 9-5 is among the first cars to use it. Reassuringly, the clever BioPower range allows the model’s 2.0-litre engine to also run on unleaded, which means if you can’t find a garage selling the alternative fuel, you can simply brim it with petrol and continue your journey. The nifty engine management will sort out the rest, optimising performance from the resulting mixture.

Sounds good so far, but there is a major problem. Only a handful of outlets currently sell bioethanol in the UK – and the few that do are confined to predominantly rural areas.

That’s a shame, because if you run the 9-5 on unleaded you’ll get only 150bhp instead of the 180bhp available from the eco-friendly stuff, and the 0-60mph time increases by 1.3 seconds.

On the plus side, bioethanol is slightly cheaper than petrol and Saab says it reduces CO2 emissions by 50-70 per cent compared to conventional unleaded. Still, because the car’s official CO2 output of 204g/km is measured using petrol, there’s little benefit for com-pany car drivers – especially as it costs £600 more than the standard model.

The good news is that when cruising, you won’t notice which fuel is being supped, despite the difference in power. Elsewhere, it proves similar to the standard machine, with too much body roll and a soggy ride.

A dated cabin design also makes it hard to recommend – and BioPower does little to boost the car’s appeal. Only the shortage of rivals makes the Saab worth considering if you must have an executive car that drinks bioethanol.

Skip advert
Advertisement

New & used car deals

Volkswagen Golf

Volkswagen Golf

RRP £25,235Avg. savings £2,502 off RRP*Used from £11,295
Vauxhall Corsa

Vauxhall Corsa

RRP £19,690Avg. savings £5,321 off RRP*Used from £11,399
Nissan Qashqai

Nissan Qashqai

RRP £27,415Avg. savings £8,206 off RRP*Used from £9,995
Toyota Yaris Cross

Toyota Yaris Cross

RRP £27,145Avg. savings £2,383 off RRP*Used from £15,534
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Make motorists pay-per-mile if you must, but at least use the cash to fix the roads!
Road repairs - opinion

Make motorists pay-per-mile if you must, but at least use the cash to fix the roads!

Dean Gibson wants more money from car taxation to go specifically on road maintenance
Opinion
25 Dec 2025
The Multi-Purpose Vehicle must return to save car buyers from their SUVs
Opinion - MPVs, header image

The Multi-Purpose Vehicle must return to save car buyers from their SUVs

Steve Walker thinks that MPVs would bring some much-needed choice back to a family car market fixated by SUVs
Opinion
26 Dec 2025
New Nissan Sakura 2026 review: a kei car for Europe?
Nissan Sakura - front tracking

New Nissan Sakura 2026 review: a kei car for Europe?

All-electric versions of Japan’s kei car will help to form the basis of a new, low-cost, low-regulation EV from Europe’s manufacturers
Road tests
23 Dec 2025