XL1 dive and drive: Volkswagen aggressively optimizes for efficiency in its sleek diesel plug-in hybrid
Green Car Congress
JUNE 24, 2013
The XL1 has a top speed (electronically controlled) of 160 km/h (99 mph); cruising at a constant 100 km/h the XL1 uses only 8.3 The XLI can be also be put into a charging mode, which runs the engine at a slightly higher point that required, using the excess power to generate electricity to recharge the battery.
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