European Rally Champion Miko Marczyk has set a Guinness World Record with an Audi A6 Sportback e-tron Performance. On a single battery charge, he covered 1,338 kilometers with an average consumption of 7.09 kWh/100 km.
Normally, Miko Marczyk’s focus is on losing as little time as possible on the road. But for his latest outing in the Audi A6 Sportback e-tron Performance, the opposite was required: speed out, efficiency in.
On 11 September at 1:55 am, the Polish rally driver set off on a Guinness World Record attempt that took him along the Vistula River across Poland. The route passed through Kraków, Sandomierz, Warsaw, Toruń and Grudziądz before reaching Hel on the Baltic coast, then returned along the same path.
After more than 45 hours, the journey finally ended between Toruń and Ciechocinek, after exactly 1,338 km. According to Audi, Marczyk drove in regular traffic, including during rush hour, and was not allowed to recharge. The average temperature was around 15 degrees Celsius, dropping to as low as seven degrees in Grudziądz in the early morning.
Consistent efficiency
The comparison with the standard range is surprising. The Audi A6 Sportback e-tron Performance officially offers up to 777 km range according to WLTP. During the record attempt, it managed an additional 561 km.
Unsurprisingly, the key wasn’t a secret second battery under the boot floor, but the driver’s consistent efficiency. Audi reports energy consumption of just 7.09 kWh per 100 kilometers. For comparison: the usable battery capacity of 94.9 kWh alone shows how far the car was driven from typical everyday consumption.
Marczyk relied on the usual efficiency levers: steady speed, anticipatory driving, minimal unnecessary acceleration and braking, correct tire pressure, and targeted use of regenerative braking.
“Even for me, a result of 1,338 kilometers was a pleasant surprise,” says Marczyk. The record driver attributes this to the interplay of the drivetrain, battery, and low aerodynamic drag.
The world-record holder revealed how to make full use of the car’s potential: first, get to know your car, its characteristics, driving modes, systems, and behavior under different conditions. Second, make the best use of regenerative braking; recovering energy during deceleration is key to efficient electric driving.
Third, check tire pressure; the right pressure reduces rolling resistance and lowers energy consumption. Last but not least: read the road and drive smoothly; anticipate what lies ahead and avoid unnecessary acceleration and abrupt braking.
Aerodynamics and regeneration
Technically, the A6 Sportback e-tron is based on the Premium Platform Electric (PPE). The tested Performance variant features a 100 kWh gross and 94.9 kWh net battery capacity, plus an 800-volt architecture.
For a range like that, aerodynamics likely play a significant role. The A6 Sportback e-tron achieves a drag coefficient (Cx) of 0.21, making it Audi’s most aerodynamic production model to date, according to the manufacturer.
At higher speeds, air resistance accounts for a much larger share of energy consumption. Audi says it accounts for around 40% of consumption in the Sportback’s WLTP cycle.
Regenerative braking also contributes. The vehicle can recover up to 220 kW during deceleration. According to Audi, this lets around 95% of everyday braking maneuvers be handled without using the mechanical brakes.
Technical stress test
This record should not be confused with a new realistic range figure. Anyone who drives on the motorway at 130 kph in the morning, cranks up the heating, and wants to have 10% charge left at their destination will not squeeze 1,338 km out of 94.9 kWh. But that is not the point.
Such record drives are less about everyday testing and more about a technical stress test in the opposite direction. Instead of examining how much power an electric car can deliver, they explore how little energy it needs under favorable conditions.
This is why the 7.09 kWh/100 km figure is more interesting than the sheer kilometer count: it demonstrates the potential of aerodynamics, rolling resistance, regenerative braking, and driving strategy when all factors work in the same direction.
This type of efficiency record is not entirely new for Marczyk. As early as March 2025, he covered 2,831 kilometers on a single tank of fuel in a standard Škoda Superb of the fourth generation with a 2.0 TDI engine.
At the time, average consumption was 2.6 liters per 100 km. Now, he has transferred the same ambition to an electric car. This time, the focus was on extracting every last kilowatt-hour instead of maximizing kilometers per liter of diesel.
