I noticed Acura has turbocharged their SUV. I wish they would do the same for the TL. I also notice that you can get the 3.5 L engine in the 2007 TL as an option. Personally, I would have preferred that they offered the 3.2 L engine and put a turbo or two on it as an option. BMW has now done it - twin turbos on an inline six that puts out big torque from 1400 rpms to nearly the redline with essentially no lag. I suspect installing the 3.5 L in the TL costs less than turbocharging the 3.2. When you get to thinking about the piping, intercooler, wastegate, blow off valve, engineering costs, and software changes, the bigger engine is the less expensive option.