Factors that affect John Deere dealerships also affect manufacturers that provide the parts for tractors. Low crop prices and high borrowing costs contribute to a declining farm economy.

When we tested a Camaro SS350 back at its launch, we called it "an American interpretation of a European Gran Turismo." That car had a 350-cubic-inch V-8, which was good for a 7.8-second run to 60 mph ...