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According to Insideevs, the official EPA ratings for the 2027 Rivian R2 Performance reveal a surprising parity in energy consumption between two of the market's most prominent electric crossovers. While Tesla has long held the crown for manufacturing highly efficient EVs, Rivian appears to have closed that gap significantly with its new mid-sized platform.
Comparative performance and battery specs
The data shows that the R2 Performance, equipped with 21-inch wheels, can achieve a range of up to 330 miles on a full charge. It operates at an average energy consumption of 32 kilowatt-hours per 100 miles (3.12 miles/kilowatt-hour). In a direct comparison, the 2026 Tesla Model Y Performance—which also utilizes 21-inch wheels—delivers a range of 306 miles while maintaining that exact same energy consumption rate.
Despite these identical efficiency figures, the two vehicles differ substantially in physical dimensions and power output:
Engineering hurdles and future models
Early certification documents from April suggested that Rivian might actually exceed Tesla's efficiency, but final EPA numbers confirmed they are currently neck-and-neck. This achievement is particularly notable because the R2 is a boxier, adventure-oriented vehicle designed for more demanding terrain than the sleek Model Y. For drivers seeking versatility, the R2 also offers an all-terrain wheel option rated at 307 miles of range with a consumption of 34 kWh/100 miles.
Looking ahead, Rivian plans to expand the R2 lineup in late 2027 with more affordable configurations. The base rear-wheel drive version is expected to cover over 275 miles per charge, while a long-range variant aims to exceed 345 miles. By matching Tesla's efficiency benchmarks with a heavier and more capable chassis, Rivian has proven its ability to execute complex engineering on a mass-market scale.