Gone are the days when big luxury cars were all gas guzzlers.

Mercedes-Benz E200

Mercedes -benz -E200

So while it’s certainly still possible to have a hulking big engine in your executive express, each of the circa-1600kg misers here is powered by a turbo-fed engine in a size once more common in small and medium cars.

The 2.0-litre four-cylinder Benz ties with the 520i on a respectable 6.4L/100km and, like the 520i, the E200 can go for as long as 24 months between mechanical check-ups, depending on driving conditions, which earned them the full complement of points in that field.

The Merc’s 48 percent retained value isn’t great in an outright sense, but it’s the best of the top trio.

BMW 520i Luxury

BMW-520i -luxury

Audi A6 1.8 TFSI

Audi -A6-rear -side

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