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The Sunday Drive, Rivian Week in Review, July 20 to July 26, 2026

Rivian halts Half Moon Grey R2 deliveries, sues the federal government over tariff refunds, and puts out a charging adapter warning. Plus R2 battery pack costs, a tire efficiency breakdown,… · Rivian
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Rivian R1T Hankook iON HT

Most Efficient Rivian R1 Tires by Size, Ranked by Real Data

We ranked the most efficient Rivian tires for each wheel size using real-world data from our Rivian Roamer integration, with the single-vehicle flukes tossed out. Here are the top 5 for the 20, 21, and 22 inch R1T and R1S, plus the factory tires that quietly punch above their reputation.

Rivian R2 Catalina Cove Offroading

Your Old Charging Adapter Could Fail on the Rivian R2

Tom Moloughney melted a pin on an older Tesla adapter while charge testing the R2, and the reason is the R2 itself. It pulls more current than almost anything else on the road, which means the adapter in your frunk may not be up to it.