Fuel Economy
When it comes to fuel efficiency, both the Civic and Corolla are at the forefront of their class with similar EPA estimated ratings. The Corolla ranges between 22-26 mpg in the city and 30-36 mpg on the highway, while the Civic can achieve between 21-26 mpg in the city and 29-36 mpg on the highway. If you're looking to reduce your carbon footprint, both the Civic and Corolla emit 6.3 tons of carbon annually.






Technology
Both the Civic and Elantra have a long list of optional technology offerings, including a navigation system with voice recognition, Bluetooth capability, USB audio interface, a power moonroof and XM satellite radio. However, where they differ is audio system offerings. While both are standard equipped with a six-speaker AM/FM radio with a CD player, the Corolla can be upgraded to a premium 440-watt JBL sound system. The Corolla also offers optional heated front seats.



Safety
As for safety, the Corolla comes away as the winner with more standard safety offerings than the Civic. Both are equipped with a full compliment of airbags, active front head restraints and anti lock brakes (with electronic brake-force distribution on the Civic). However, the Corolla offers standard electronic stability control and traction control across all its models, while the Civic only makes electronic stability control standard on its upper trim levels. In NHTSA crash test data, the Civic beats the Corolla in front passenger impact and side rear-seat impact with a perfect five starts, compared to the Corolla's four stars. However, the Corolla beats the Civic with five stars in side front-seat impact. The Civic has not received crash test data from the IIHS.