Complex sentence: It is available with either a 3.0 L or 2.5 L Toyota V6 GR series engine, the 2.5 L variant equipped with variable valve timing; a 5-speed automatic transmission; and all wheel drive.
Split into simpler sentences: It is available with either a 3.0 L or 2.5 L Toyota V6 GR-model engine; the 2.5 L variant is equipped with variable valve timing. It has a 5-speed automatic transmission and is available with all wheel drive.