Performance, power and 0-100 km/h
2026 Rivian R1S Dual Standard has the quicker recorded 0-100 km/h time at 3.6 seconds, compared with 3.8 seconds for 2025 Tesla Model X Long Range. 2025 Tesla Model X Long Range has the higher listed output at 670 hp; 2026 Rivian R1S Dual Standard is rated at 600 hp, a difference of 70 hp. The torque figures follow 2026 Rivian R1S Dual Standard at 878 Nm and 2025 Tesla Model X Long Range at 840 Nm. These figures describe straight-line potential only; they do not establish braking performance, ride quality, steering response or durability under repeated hard use.
Range, battery, charging and efficiency
2025 Tesla Model X Long Range carries the longer listed range at 580 km, against 488 km for 2026 Rivian R1S Dual Standard. 2025 Tesla Model X Long Range has the lower recorded consumption at 17.2 kWh/100km; 2026 Rivian R1S Dual Standard is listed at 20.5 kWh/100km. 2025 Tesla Model X Long Range has the higher listed DC charging ceiling at 250 kW, compared with 220 kW. Test cycle, temperature, wheel size and charging conditions can materially affect these results, so only figures measured on the same basis should be treated as directly comparable.
Dimensions, cargo space and towing
2025 Tesla Model X Long Range provides the larger quoted cargo volume: 907 litres versus 498 litres, a difference of 409 litres. 2026 Rivian R1S Dual Standard carries the higher towing rating at 3,175 kg, while 2025 Tesla Model X Long Range is listed at 2,268 kg. 2025 Tesla Model X Long Range is 17 mm longer overall. Exterior size is not a benefit by itself: a longer body may create useful room, but cargo shape, rear-seat space and ease of parking still require a physical inspection.
Price and overall assessment
2026 Rivian R1S Dual Standard has the lower listed starting price at $75,900, compared with $79,990 for 2025 Tesla Model X Long Range. The measured categories split evenly, so the better choice depends on which attributes matter most. The assessment is based on the specifications shown here; it is not presented as a two-car road test.