Macan EV: InsideEVs’ Highway Test of the Porsche EV

May 28

What We Learned from InsideEVs’ Highway Test of the Porsche Macan EV

If you’ve ever wondered how fast is too fast in an EV, particularly in something as capable as the Porsche Macan Electric, there’s a fantastic recent test that answers exactly that. The team at InsideEVs — specifically contributor Iulian Dnistran, with testing by State of Charge host Tom Moloughney — put the Macan EV through a highway range test that’s both simple and incredibly relevant for real-world drivers.

Instead of just looking at EPA figures or ideal conditions, they asked a very practical question:
How much range do you lose if you drive 80 mph instead of 70?

This test is worth reading in full, and I highly recommend it if you're curious about how EV performance holds up on the road. You can find the original article here:
👉 Porsche Macan EV Highway Range Test – InsideEVs

Here's What They Found

The test used a rear-wheel-drive Macan EV with 20-inch aero wheels and a full battery on the New Jersey Turnpike.

At 70 mph, the Macan EV went 343 miles, averaging 3.7 mi/kWh.
At 80 mph, it went 284 miles, averaging 3.0 mi/kWh.

That’s a 59-mile drop in range — about 17% less — just from increasing speed by 10 mph. This is consistent with what we see across the EV market: efficiency takes a serious hit at higher speeds, especially above 70 mph.

Why This Test Matters

This wasn’t just a numbers exercise. Moloughney also looked at time and energy use. At 80 mph, you get farther faster, but you also burn through your battery quicker — which means more charging stops, higher energy costs, and potentially more hassle if fast chargers aren't available when you need them.

That said, the Macan’s ability to charge from 10% to 80% in just about 21 minutes is a big part of the equation. If you have access to high-speed DC charging, that efficiency loss becomes more manageable. But if you’re road-tripping through areas with sparse infrastructure, staying around 70 mph will almost always give you more flexibility and less stress.

Our Take

This kind of real-world testing is exactly what EV buyers need more of. It moves past the lab-tested estimates and gets to the heart of how these vehicles work when you’re actually using them. Kudos to InsideEVs and Tom Moloughney for putting in the time to run both tests back-to-back and share the full breakdown.

And if you’re driving a Macan EV — or considering one — this data is gold. It proves the car is capable of stretching well beyond its EPA range in the right conditions, and that Porsche’s fast-charging system is among the best in class. Just be aware that your driving style still matters, even in a Porsche.