Toyota details powertrain advances in Gen4 Prius; available E-Four system for all-wheel drive
Green Car Congress
OCTOBER 13, 2015
liter VVT-i Atkinson cycle gasoline engine (2ZR-FXE), Toyota completely re-engineered the engine, delivering results in terms of performance, fuel economy, and reductions to size and weight. The exhaust heat recirculation system has also been improved and made more compact, lighter and efficient.
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