 In 2004, a 2.0 L "MultiPower" engine was made available for the taxi market which could use gasoline, alcohol, and natural gas.The "Family II" also spawned two diesel variants, the 1.6 L and 1.7 L. These engines are sometimes referred to as "Big-block" engines by enthusiasts; in contrast to the smaller Family 1 engines which are sometimes referred to as the "Small-block" engines.The development track of these engines split in 1987, with the introduction of the 20XE; which featured a 16-valve DOHC head.