Five 3-cylinders that aren't your grandfather's engines

- Displacement: 1.5-liter- Valvetrain: DOHC 12-valve- Construction: Aluminum head and block- Compression ratio: 11.0:1- Output: 136 hp @ 6,000 rpm; 230 lbs.-ft. of torque @ 1,250 rpm- Special features: Direct fuel injection, turbocharging, variable valve timing- EPA rating: 30 city/42 hwy. (manual transmission)*The BMW i8 plug-in hybrid will have a performance-tuned version of this engine.

- Displacement: 1.0-liter- Valvetrain: DOHC 12-valve - Construction: Cast-iron block, aluminum head- Compression ratio: 10.5:1- Output: 123 hp @ 6,000 rpm; 125 lbs.-ft. of torque @ 2,500 rpm- Special features: Direct fuel injection, turbocharging, variable valve timing, offset crankshaft, variable oil pump, split cooling system, externally balanced flywheel and pulley- EPA rating: 32 city/45 hwy. (manual transmission)

- Displacement: 1.0-liter- Valvetrain: DOHC 12-valve- Construction: Aluminum head and block- Compression ratio: 10.0:1- Output: 115 hp @ 1,800 rpm; 122 lbs.-ft. of torque @ 1,800 rpm- Special features: Direct fuel injection, turbocharging, variable valve timing, adjustable oil pump, integrated exhaust manifold, switchable water pump- EPA rating: N/A

- Displacement: 1.0-liter- Valvetrain: DOHC 12-valve- Construction: Aluminum head and block- Compression ratio: 11.4:1- Output: 70 hp @ 5,800 rpm; 68 lbs.-ft. of torque @ 4,500 rpm- Special features: None- EPA rating: 34 city/38 hwy. (automated manual transmission)