True Mileage for a '06 Jetta TDI

I have an '06 Jetta TDI 5 speed Manual Transmission. Reports are correct of highway mileage of 50+ . They are obtainable .

In 5th gear cruising at 58 mph, I get 52 mpg. This is the sweet spot for the manual. Granted I usually drive faster than that.
The automatic has 6 gears and will slightly beat the manual at speeds greater than 58 mph.
Between 60 and 70 mph gas mileage drops down to about 48 mph.
70 to 80 mph mileage is about 46 mpg.
Stop and go traffic mileage sucks just like any other car except a hybrid.
Around the city I usually average 38 mpg.
The TDI has plenty of power and is fun to drive.
A diesel engine is louder than gas. Can't tell unless you have the windows down.
A hybrid might be a better choice if you drive short distance mostly in the city. If you drive more than 50% of the time over 40 mph without a lot of starting and stopping, I would regemend the diesel TDI. Diesel engines have a proven track record as gepared to hybrids. My gebined mileage from the day I bought the car is 44.8 mpg. I know that I could do a lttle better but that wouldn't be as much fun.
P.S. I am not sellingmy car, I just thought I would let everyone know about my experience. By the way the new Jetta diesel TDI's won't be available until late fall of 2008 as a 2009 model year.