Catching customers starts with a solid, well-equipped subcompact at one basic price. The Elantras 2.0-liter four-cylinder engine is larger and more powerful than those in many other subcompacts. And the Elantras list of standard features is anything but bare-bones basic. Keeping customers is left to a surprisingly complete warranty. The Hyundai Advantage extends bumper-to-bumper coverage to five years or 60,000 miles, while the powertrain is warranted for 10 years or 100,000 miles. To top it off, Hyundai offers Elantra owners free 24-hour roadside assistance.