I was thinking the same thing, Jamie.
Theophilus' rendering has rounded bumper covers (at the corners). The Mitsu version will probably have quite squared off corners, like the hatchback. (But if you read the comments on Theophilus' site, you'll see he basically grafted the real back end of an existing car onto the Mirage to make that pic... and new cars are just starting to come with sharp rear corners for better aero.)
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View my fuel log 2014 Mirage ES 1.2 manual: 62.4 mpg (US) ... 26.5 km/L ... 3.8 L/100 km ... 74.9 mpg (Imp)