Chevrolet 2013 Impala Bedienungsanleitung PDF herunterladen (Seite 5)

BILL RIETOW LEAD DEVELOPMENT ENGINEER

Bill Rietow has raced cars since he was old enough to drive a

go-kart. After working on the GM Racing Vehicle Team, Rietow

brought that competitive mind-set to the job of squeezing more

fuel efficiency

from the powerful new 300-horsepower V6.

HOW WERE YOU LOOKING TO IMPROVE IMPALA?

Essentially, the 2012 was an evolution of the Impala—making it

even better than what it currently is in the areas of powertrain

performance, ride and handling, and also fuel economy.

have the StabiliTrak® Electronic Stability Control System,

which uses individual brake pulsations at the appropriate

moment to help the driver maintain control of the vehicle.

The highway fuel economy of the car is better than the 2011

model year. We’ve attained 30 miles per gallon on the highway.

The previous base engine could only attain 29 miles per gallon

highway,

so that’s a significant breakthrough in fuel economy

that equates to less operating costs for the customer.

HOW DOES THE 300-HORSEPOWER ENGINE BENEFIT THE CUSTOMER?

The extra power in the 3.6-liter engine allows us to go down

in overall axle ratio. For the customer, that means they can

ride along at 60 mph at a much-reduced engine speed, which

equates to greater fuel economy.

Also, we’ve reduced the 0-to-60

time by over a second. Now you have very brisk acceleration to

expressway speeds and additional acceleration reserve to get

out of collision situations.

WHERE’S THE BALANCE POINT BETWEEN FUEL EFFICIENCY AND POWER?

The 300-horsepower V6 has got plenty of straight-line

performance for a family sedan. So it became relatively easy

for us to balance the equation more towards fuel economy

changing things such as transmission shift pattern and final

drive ratio to enhance the fuel economy of the car.

WITH YOUR BACKGROUND IN RACING, DO YOU FEEL LIKE THE 2012 IMPALA

IS A PASSENGER CAR WITH THE HEART OF A RACE CAR?

I think it’s a passenger car that is engineered specifically for a

family-type environment, but what comes through is the passion

that we had from working on the racing team.

1 EPA-estimated 18 MPG city/30 highway. 2 EPA-estimated.

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Chevrolet 2013 Impala Bedienungsanleitung Seite 5