The Discovery 4 (called the LR4 in North America and The Middle East) is an updated version of the Discovery. Using the same Integrated Body Frame structure, the new Discovery has altered front and rear light units and a restyled front grille and bumper to adopt the same smoother, rounder style as also adopted for the 2010 Range Rover and Range Rover Sport.
The majority of the changes are mechanical, with reliability issues addressed, improvements to engines and gearboxes, brake and suspension refinements, but also included major interior upgrades with a more luxurious and contemporary interior with greater luxury and technology levels available. The D4 receives two engines from Jaguar Land Rover's Gen III range. The TDV6 Gen III is a 3.0-litre development of the 2.7-litre engine used in the D3. The new version features advanced twin-sequential turbochargers where a Variable geometry turbocharger is used at low engine speeds, with a second standard turbo is brought online at higher engine speeds. Two versions of the 3.0-litre diesel are offered. Fuel economy was improved over the previous generation diesel while power, torque and diesel NVH were improved significantly. This system provides greater output than the older engine, with 241 bhp (180 kW) and 600 N⋅m (440 lb⋅ft) whilst reducing CO2 emissions by 10 percent when first introduced and in 2014 increased to 188 kW (252 hp). The Gen III version of the V8 petrol engine (available in markets outside the UK such as North America, Russia, Japan, Australia, and some EU countries) is now a 5-litre unit with Direct Petrol Injection developing 385 bhp (287 kW) and 520 N⋅m (380 lb⋅ft).