VW '04 Jetta TDI. As my rear license plate holder reads, "TDI owners do it with direct injection." (The TDI badge is actually a German acronym, but the Americanized version -- turbo direct injection -- works just fine.)
Real numbers: approximately 45 mpg on my commute (mixture between highway and winding backroads, although I tend to do the same speed on both), over 50 mpg on straight highways. These are not guesses or wishes, these are fact; I log my fuel consumption between fillups using my trip odometer and receipts, and I always fill up at the same pump at the same station. I can actually tell you the difference between the fuel at the station I use and most others (2.1 mpg) and between the regular #2 and the #2 doped with Power Service. (Another 1.3 mpg.) Muscle car enthusiasts track their quarter-mile times. TDI owners track their fuel consumption. It's a testosterone thing.
Driving is...fun. And unusual. The power curve is completely different than any gasser that I've ever driven, due to the relatively narrow powerband and the variable geometry turbocharger. It lugs up to 1900 RPM. At 2000, the turbo starts spooling, you hear the characteristic whistle (much like a semi, but quieter), and the car goes. 2000-3000 is an invisible hand pushing me firmly into the seat. Torque tapers off quickly after that and while max horsepower is around 4000, I almost never go that high. Hit 3, go a bit more, and shift. Both the engine and the transmission seem to like this best. It's said that people buy horsepower and drive torque; while critics focus on the 100 HP figure, I find myself most impressed with the 177 ft-lbs. of torque. A 4-cylinder isn't supposed to drive like this...especially an economy model. And to think of what VW could have provided us if this country had decent diesel fuel...
First gear is too low and it feels like the economy car that it is. Hit second with high RPM's, push the pedal, and things are suddenly more fun. The tires chirp and the tachometer starts moving. Get ready to shift -- you'll be at 3 in less than a second. Third and fourth are less fun. Fifth is almost as good as second: the car gathers itself like a sprinter crouching, the tach goes over two, and off she goes like the little Autobahn cruiser that she was meant to be. 100 doesn't feel much different than 60, although one should pay better attention to their surroundings...especially on the back roads, where the speed limit seldom exceeds 45.
The powerplant demands attention. Monitor throttle setting, monitor RPM's. Shift frequently -- the powerband is narrow and the fuel cuts off without throttle pressure, so downshifting is not only advantageous for acceleration, but it's vital for best economy. I've driven the automatic version of this car and I can't recommend it. This engine needs a master. It cannot operate properly on its own. I don't use cruise control for this very reason. The car demands a firm hand for best performance. As much as I enjoy mine, I can't recommend it for most in this trim. It took me 10,000 miles to figure out how to drive it, and I'd been coached.
The cornering is acceptable. I still miss RWD and oversteer, and the stability program takes the fun out of things; I sometimes turn it off when the roads are wet. Engaged, pushing the car past its limits results in a loud THUNK and a rapid straightening of the track -- effective, but not enjoyable. The suspension is firm enough to connect me to the road but not enough to work my kidneys.
The 1.9L diesel is reputed to be bulletproof. Mine has been so far. The electronics are...well, less than bulletproof. I haven't had any problems in the last 10,000 miles besides a passenger window that occasionally closes itself without being asked. The infamous VW window problem has reared its ugly head twice, but hasn't appeared in a while.
What would I change? No MP3 player (fixed) and no sixth gear. It needs a sixth gear. It doesn't, actually -- 60 mph is right around 2000 RPM in 5th, buth the way that I drive, sixth would be nice. I have my own little Autobahns marked out.
I put approximately 500 miles per week on my car via my commute. It is still fun to drive. That's my highest compliment. The fuel consumption doesn't bother me either.
The "Is that a diesel?" stuff ended last year. I placed a sticker on the back window just in case: "Yes, it's a diesel."
Last year, while filling up in Puyallup with premium diesel (not available around here), the woman at the counter noted my car at the diesel pump and said, "You know that you're pumping diesel, right?"
"Yes, ma'am," I said.
"And just how far do you think you'll go with that?" she asked.
"I'm shooting for 800 miles. Wish me luck," I answered. I refill around 650, but I could've gone a bit longer.
She didn't get the joke.
Say what you want about German cars, but I still think that they're the most fun to drive. (As we VW owners like to say, "I'm driving this because I couldn't afford an Audi.")
When I'm ready for my next car, I'll be looking for something like this. (But hopefully the electrical stuff will work right.)