The compact-car segment has grown more competitive in America, with roomier interiors and gas mileage that rivals some hybrids. Case in point: the 2011 Volkswagen Jetta TDI. It’s about as fuel efficient as the Toyota Prius and Honda Civic Hybrid, and it’s more affordable, too, says Cars.com editor Bill Jackson. The new Jetta handles well, and the diesel powertrain feels punchy, but what does Bill think of the contentious interior?