Car and Driver: Audi RS5 vs. BMW M3 vs. Cadillac CTS-V

Car and Driver ventured out to the German Autobahn and the 'Ring to test the three hottest sport coupes out today. The Car and Driver test team burned up 2,000 dollars of fuel testing the coupe's 178 mph top speed. Car and Driver loved the RS5's gearbox, the Cadillac's power and M3's steering and the general performance level of all three was outstanding with 0 to 60 arriving in around 4 second flat and the "slowest" ran a 12.5 second 1/4 mile. Here are the ratings:

Third. Audi RS5. Car and Driver appreciated the RS5's 7 speed S-Tronic gearbox and 450 horsepower V8 but its 4,000 pound curb weight along with steering modes that never achieve satisfaction put it in third.

Second. Cadillac CTS-V. Car and Driver found the CTS-V the most stable on the Autobahn and the supercharged V8 most powerful, yet a little too quiet. C/D also liked the Cadillac's steering and brakes but was disappointed by its interior and Recaro seats.

First. BMW M3. The lightest in test (3,600 pounds) M3 with the competition package had the best handling in the test. C/D also liked the M3's V8 soundtrack. The M3 was the shiftiest at high speed on the Autobahn.

New BMW 5 series no match for A6 in C/D Comparo

Car and Driver rounded up three premier sport sedans for its August issue. The brand new BMW 535i was joined by an equally new Infiniti M37 and the Audi A6 3.0T that won the previous Car and Driver comparison in this category. Unfortunately for BMW, its latest 5 series finished in last place because it had the lowest rated steering in the hills. The electric power steering was so disappointing that the other redeeming qualities weren't enough to place the 5 series any higher. The Infiniti M37 placed second because of its unlinear brakes and somewhat unusual nature of its 4 wheel steering. Otherwise Car and Driver appreciated the Infiniti's exterior and interior styling. The A6 won on its strength of communicative steering, comfortable ride and torquey supercharged engine.

All three sport sedans had similar acceleration with 0-60 arving in around five and a half seconds with 14 second quarter miles and 100 mph trap speeds. The Audi and BMW both had 10% better fuel economy than the naturally aspirated Infiniti.

Is it time for BMW to go back to the drawing board with its electric steering given that the brand new 5 series finished last, and its closest rival won with a vehicle that's soon to be replaced?

Car and Driver Comparison Test: Audi A6 3.0T quattro, BMW 535i, Infiniti M45, Jaguar XF, Mercedes E 350

Car and Driver recently compared this group of five mid size luxury sedans priced in the high 50 to low 60,000 dollar range. After doing several days of evaluating the cars they concluded that no one would be making a mistake buying any one of these cars. However, here are the results.

Mercedes-Benz E 350: 5th place.

The engine was the weakest of the bunch and a little coarse. Works better on the highway than the hills.

Jaguar XF: 4 th place.

The 300 horsepower V8 is no stronger than the competing V6s. Jaguar's fancy gear selector was problematic, and like the Mercedes it wasn't at home on the twisty roads. Not very spacious for the rear occupants.

Infinit M45: 3rd place.

Strong acceleration from the 325 horsepower V8. The sport package that comes with rear steering steering which didn't work too well. Car and Driver did find the Infiniti roomy and liked the transmission and the short breaking distances of the M45.

BMW 535i: 2nd place.

The only car with a manual in the test and the lightest of the group, the BMW was the quickest of the group. The BMW was also the most expensive of the group, almost reaching 64,000 dollars.

Audi A6 3.0T quattro: 1st place.

Car and Driver was impressed by the dynamics of the supercharged V6, best in test steering and good break feel. They also found the ride compliant and the automatic gearbox did what it was supposed to. On the negative side there was tire noise and a few weird controls.