The difference is only going to be maybe some horsepower, but the trade off is a huge MPG hit. The Touring model '16 Civic is about as luxury as you can find! Of course some will argue there are a few cheaper components/materials (like the floor carpeting), but I cover it up with weathertech floor mats so it doesn't matter.
The advantage of the Civic over ANY luxury car is that it is mass produced, so parts are cheap, plentiful, and there are solutions to every issue because of the quantity of sheer quantity of cars out there.
I could never justify the extra initial cost, maintenance cost, parts cost, premium fuel difference + less MPG in luxury cars.