Each McCormick tractor reflects the passion and dedication of those involved in designing testing and producing this superb range of tractors. The McCormick X7 Series VT-Drive tractors offer the ultimate in style, technology, operator comfort and productivity. Five models in the range are all powered by the new Betapower Fuel Efficiency four-and six-cylinder turbo engines with multivalve technology and common rail injection system. These engines meet Tier 4 Interim emission regulations using the SCR system, an exhaust gas after-treatment technology that reduces exhaust emission without compromising engine performance. The VT-Drive transmission is a continuously variable transmission (CVT) that provides an infinite number of speed ratios from zero to the maximum speed permitted in the country of use.