I got lucky here and found something without searching for more than 3 minutes:
We hit the test track then dug through our archive of comparison tests to find out.
With a 0-60 time of 6.5 seconds and quarter mile of 15.0 seconds at 94.7 mph, the Sonata 2.0T is legitimately quick. But the big surprise is how it completely embarrasses the all-new 2011 Buick Regal CXL. That premium-priced, turbo 2.0-liter is a full second behind at 60 mph and needs 15.7 seconds and 92.8 mph to finish the quarter mile.
The Sonata turbo is also faster than the V-6 Ford Fusion Sport (6.8 sec/15.2 sec @ 94.0 mph) and splits times with the V-6 Honda Accord EX-L (6.5 sec/15.5 sec @ 95.5 mph), V-6 Chevrolet Malibu LTZ (6.5 sec/15.1 sec @ 93.7 mph) and Passat 2.0T (6.7 sec/15.0 sec @ 93.4 mph). Those times were pulled from comparison tests we did in the February 2008 and June 2008 issues.
The Sonata turbo does not fare quite so well against its other V-6 rivals, however. Though the Sonata recently passed the Altima for the number-three spot in segment sales, the Nissan isn't that easy to pass on the road. The V-6-powered Altima SE we tested back in 2008 needed only 6.3 seconds to hit 60 and 14.8 seconds and 96.1 mph for the quarter mile.
The Toyota Camry is faster still -- a 2007 SE model we tested laid down a 6.3-second blast to 60 and a 14.6-second quarter mile at 96.8 mph.
http://ettleson-hyundai.blogspot.com/2010/10/first-test-2011-hyundai-sonata-20t-is.html