ELANTRA is powered by two versions of Hyundai's "Beta" twin-cam, 16-valve, four-cylinder powerplant - a 1.8-litre on GL and 2.0-litre on GLS. Both bring improvements in refinement, economy, emissions and output. The 1.8 is up 3kW in power to 97kW at 6000rpm and 2Nm in torque to 165Nm at 4500rpm. The 2.0 now develops 104kW at 6000rpm (up 3kW) and 182Nm at 4500rpm (up 2Nm). Official city/highway (manual) fuel economy figures point to 8.5/5.6L/100km respectively for GL GLS is slightly higher. Both the 1.8 and 2.0-litre engines are up in power, torque and fuel economy, while down in emissions and NVH (noise, vibration and harshness). The GL manual is claimed to reach 100km/h in 9.7 seconds while the GLS is slightly quicker at 9.1 across 400 metres, the GL requires 17.1 seconds compared to 16.0 for GLS. Engine enhancements encompass most major components such as cylinder block, crankshaft, pistons, cylinder head, valve train, intake manifold and the exhaust system. Major NVH benefits accrue from adoption of an eight-counterweight crankshaft (previously four) and cylinder block strengthening. The 2.0-litre model now has an engine cover installed to reduce NVH and improve under-bonnet aesthetics. A heat shield has been added between the engine and air filter, reducing heating of induction air and increasing output 2 per cent.