Paying somewhere between Rs 15-20 lakh for a big-engined, heavy, auto-box car means fuel economy is not a big priority, but with fuel prices skyrocketing, it's worth keeping an eye on anyway.The Camry, with the smallest engine and the excellent VVT-i system, is the best of the lot, with a reasonable 6.6kpl in the urban run, and a decent 8.9kpl on the highway. The Sonata is a close second, 6.2kpl in the city and 8.7kpl on the highway, while the big-engined Honda only manages 6.6 and 7.7kpl.