08/16/2026
The results are in!
So what does a ~9.87% efficiency improvement actually mean in dollars?
The HALOBLK wheel covers cost me $443 CAD all-in, including shipping and duty.
Using typical Alberta electricity costs and assuming an owner does about 90% of their charging at home and 10% at Tesla Superchargers, the measured efficiency gain on my Model S works out to roughly 50–55 cents saved every 100 km.
That puts the break-even point at approximately 80,000–87,000 km. For someone driving 20,000 km/year, that’s roughly 4 years to recover the purchase price. Drive 30,000 km/year and it’s closer to 2½–3 years.
But electricity savings aren’t necessarily the biggest long-term benefit.
If the car requires 9.87% less energy to travel the same distance, you’re also putting less total energy through the battery over its lifetime. Over 100,000 km, that’s roughly 2,000 kWh of battery energy you didn’t need to use and replace, based on my Model S consumption.
That means fewer equivalent battery cycles for the same kilometres driven. It doesn’t mean battery degradation will improve by exactly 9.87% because age, temperature, state of charge and charging habits also affect degradation, but reducing lifetime energy throughput is fundamentally easier on the battery.
So even though the direct electricity payback might take around four years for an average driver, the potentially more valuable benefit is getting the same kilometres from the car while asking less from the battery.
And, of course, there’s the immediate benefit: almost 10% less energy consumption translates into roughly the same improvement in driving range from the energy available.
These results are from my own Model S and TeslaMate data. 9.87% is my measured real-world result, not a guarantee that every Tesla, wheel/tire combination or driver will see the same improvement. Although the company and others who tested them saw 9-10% gains on highway driving. City driving would be far less.