The Honda Civic EX is a higher trim level than the Civic Sport. In fact, the EX edition it's one step higher in the Civic trim hierarchy than the Sport model. As its name implies, the Civic Sport adds sporty upgrades above the LX base trim, while still utilizing the model's standard 2.0-liter engine. The Civic EX gains the 1.5-liter turbocharged engine and other cabin upgrades.