All non-Japanese-domestic Subarus are all wheel drive. All wheel drive usually means more fuel because of additional internal friction and weight of additional parts. Sporty turbo versions are usually tuned to be fast so they wouldn't be economical either. But if you look at, say 2.4L turbo CVT Legacy, they provide pretty good economy, certainly a lot better than 5.0 Mustang. https://www.fueleconomy.gov/feg/Find...41563&id=41956
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