The difference a roof rack load makes to EV efficiency? the Kayak test!

A small but intriguing test to see how the efficiency is affected when carry a load on a roof rack. Electric cars are sensitive to efficiency, you want to get the best so you can get the most miles from your EV battery , so adding anything will affect aerodynamics and therefor efficiency. But by how much?

Is it half the range? Is it better? We wanted to find out and took used our 2019 Tesla Model 3 Dual Motor Long Range Performance (with 93,000 miles!) in the normal course of daily duties but this time loaded a kayak onto the roof bars.

A Kayak is not heavy and its quite an aerodynamic shape compared to some things, but it seemed a worthy test to do to satisfy our curiousity.

If YOU have carried loads on your roof bars, what was it and how did that affect efficiency on your EV? Let us know in the comments below.

Best regards

Team RSEV (R Symons LTD Electric Vehicles) based in New Milton, Near Bournemouth on the south coast.

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