John Deere introduces its new D-Series skid-steer loaders — the 318D (pictured), 320D, 326D, 328D and 332D. Cabs on the D-Series feature 24-percent more room than their predecessors and six more inches of headroom. The 50-percent noise reduction in and around the D-Series cab comes from improved sound absorption, a hydraulic fan drive, an auto-idle feature (which also saves fuel), and the new electronically controlled engines. In addition, a high-performance HVAC system includes eight adjustable airflow vents for additional comfort.