Pro tip: when fleeing from the police, take a moment to boast about your getaway vehicle’s fuel efficiency. And get it wrong by a factor of five. SmartCars do about 20km (12 miles) to the litre.
Pro tip: When correcting someone else's work, get your facts right. There is no such car as a "SmartCar," at least not as named. In addition, even if the aforementioned SmartCar does exist, well, I'm not sure what style guide they're using over at the Telegraph, but I would guess that "20km" isn't proper. Also: The "when" beginning the phrase "when fleeing from the police" should be capitalized, as it begins a complete sentence.