The US National Highway Traffic Safety Administration has opened an investigation into roughly 1.2 million Tesla vehicles after receiving 156 complaints of a front suspension component detaching while driving.

The probe covers 2018-2020 Model 3 and 2021-2023 Model Y vehicles, and it centers on the front lower lateral link separating from the car.

Out of Spec Reviews put a Rivian R2 Performance and a Tesla Model Y Performance on the same roads on the same afternoon. The R2 used 18% to 26% more energy at every single speed they tested.

That’s awkward, because the two SUVs carry identical EPA efficiency ratings, and Rivian CEO RJ Scaringe has been telling media the R2 matches the Model Y.