Real-World Consumption Test - EV vs Hybrid vs Petrol vs Diesel

#test #fuel #consumption

A question that we get asked quite often by some of readers is why after a few weeks of taking delivery, does their car consume more fuel than claimed by the manufacturer? The reason for that is because most of the consumption test data is gathered in a controlled environment. The revised WLTP system does involve some on-road testing which brings it closer to reality than the old NEDC method but still, tested figures remain rather generous.

It today’s test, we’re going to put four cars with different fueling systems on a lengthy drive through the Cape Peninsula to see which drivetrain can deliver a consumption equal to, better or worse than what the manufacturer has claimed. The four units that we’ll be testing today is an all-electric, petrol-hybrid, diesel and petrol sedan.

The first of our contender uses a more commonly accepted form of internal combustion as seen on South African roads. It’s the BMW 330i Steptronic which employs the brand’s 2,0-litre turbocharged four-cylinder engine to deliver 190 kW and 400 N.m of torque to the rear wheels via an eight-speed torque converter. As per CAR’s fuel index, this car consumes an average of 7,7 L/100 km with a CO2 figure of 147 g/km. With this, BMW says it’ll cover a range of 1 017 km before needing to be refueled.

Making use of a naturally aspirated 2,5-litre four-cylinder engine with an electric motor is the hybrid Lexus IS300h EX. With this powertrain, 164 kW and 221 N.m of torque is sent to the rears by means of a CVT which gives it a CAR fuel index consumption of 6,2 L/100 km and a CO2 figure of 122 g/km. From a full tank, Lexus says its IS300h can carry you for 1 534 before needing to be filled up again.

Bearing the oil-burning flag is the facelifted Audi A5 40 TDI Coupe S-Line Quattro S-Tronic which uses VAG’s 2,0-litre four-cylinder turbodiesel sending power to all four wheels via a seven-speed dual-clutch transmission. Using this, it bears a CAR fuel index of 7,4 L/100 km and a CO2 emission figure of 158 g/km. The turbodiesel coupe claims to carry a tank range of 769 km.

Representing the new preset of motoring is the all-electric Porsche Taycan which uses a two-speed motor mounted to the rear axle to produce a nominal power output of 280 kW and 357 N.m of torque. Fully charged, Porsche says its entry-level EV can travel for 395 km before needing to be plugged in again.

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[Martinko_Pcik]

They didn't check the real consumption measured at the tank but the value claimed by the car itself. Those values are always lower that real amount burned.

[NeroForte_]

doing a convoy is the best comparison. do for cheap car please any of these: Toyota Rumion, Ist, Mazda verissa, nisssan tiida, dualis, Subaru forester, toyota wish, mitsubishi highlander, toyota harrier.

[jocelynchouinard]

So you compared the theoretical consumption vs real world but this is not relevant. You should have compared the cost per 100km.

[ozemsadventureofrandomstuf]

Great review ! Now here is catch…that taycan is R2m! I mean that’s hectic. The hybrid only cost that’s half of price of most efficient car here! I mean the Lexus IS probably where would put my cash overall.plus it will have bullet proper reliability 🤝🙏🏾👌

[jagjay]

what about all cars fill up to the max and drive all of them to where the last one runs out then compare time and fuel used for the same distance

[kristianniss]

Seeing the same thing. Getting about 15% more than claimed in a toyota yaris

[sundqvistd]

The consumption is also depending on whom is drivning! You should have driven them one round each to get a relevant result!

[aircraft]

It really comes down to the hybrid vs diesel in this case, EV are too expensive at the moment and gas alone doesn't get good fuel economy unless you're driving like a grandma. In the city the hybrid will be more efficient than the diesel because of regen braking, but the hybrid loses that advantage in suburban and rural areas with fewer stops or on the highway. My personal choice would be diesel because you don't need to worry about the hybrid BS going wrong.

[largelarry]

Now factor in the cost of the car and fuel.

[nibiru]

Hot jogger didn't stop to look at any of those cars. So no point in getting a non head turner🤣.

[demtumza]

Only if electric cars were not taking 75 years to full charge, I would take the Porsche. Diesel will do just fine for me. Thank you.

[Braselton]

Would've be nice if they tested the most affordable cars

[mostrendy]

In traffic an electric car is better ... Due to regenerate braking ... N etc

[shamimby]

What are the cost per kilowatt and per litter.. Do the mathematics and you'll find hybrid to be the cheapest to buy and run.. These journalist can only tell you how a car looks and feels nothing more

[laitsu]

1L petrol = about 9kW. Porsche = 19.3kw = 2.14L/100km

[spitfire]

Tesla has best range for the electric world