Technical specs and performance data for the Land Rover Discovery D300 (2020-present) Technical specifications for the 2020-2024 Land Rover Discovery D300 5 door SUV. Find & compare performance, practicality, chassis, brakes, top speed, acceleration, suspension, engine, weights, luggage & more. The Land Rover Discovery offers both a gas and a diesel engine. This includes a 3.0L Si6 gas engine, which is quite the powerhouse. Meanwhile, the Td6 diesel engine improves your options when it comes to low-end torque. Si6 models deliver 340 horsepower and 332 lb-ft of torque, and Td6 models get 254 horsepower and 443 lb-ft of torque. Specifications. 2020 Land Rover Defender 110 SE. VEHICLE TYPE front-engine, 4-wheel-drive, 7-passenger, 4-door wagon. PRICE AS TESTED View 2020 Land Rover Discovery Sport Details. suNs5kY.