866-938-9495 2012 Toyota Camry offers improved versions of last year's engines: a respectably powerful 2.5-liter four-cylinder and a 268-horsepower 3.5-liter V6. Both engines also join a six-speed automatic transmission to deliver better fuel economy. The four-cylinder returns an EPA-estimated 35-highway mpg, while the V6, with nearly 100 more horses, achieves 30 mpg on the highway.