Tosca was replaced by the Chevrolet Malibu which entered production in South Korea for the first time.

[10] The "Chevrolet Epica" name was previously used on V200 Daewoo Magnus models sold in Canada, Latin America, China, Europe, Arabia and Micronesia.

[14] Daewoo's XK straight-six engines were designed by Porsche,[15] and they are what distinguish the Tosca from other similar vehicles.

The Tosca was launched with two versions of the straight-six of different displacements: the 2.5-litre, which was carried over from the Magnus, and a 2.0-litre,[7] which replaces the Holden-sourced 2.0-litre D-TEC used in the previous model.

[7] GM also announced that in early 2007 these engines will be joined by a 2.0-litre RA 420 SOHC straight-four common rail turbodiesel, producing 112 kW (150 hp) and 320 N⋅m (236 lb⋅ft) of torque.

[17] In early 2008, Daewoo launched an updated version of Tosca with a new six-speed automatic transmission in South Korea.