I'd never seen a tractor with triangle tracks. We would see three of these. They cost 1/2 million each. It's a Case IH Steiger 620 Quadtrac. The independent four-track design eliminates slippage between the drive wheel and track for superior traction with minimum soil compaction. The design of the tracks provides a smooth drive on the road as well. Operators also benefit from new technology. Auto-guidance systems such as AccuGuide provide accuracy as tight as 2.5 cm (RTK+ signal) and AccuTurn automates the entire headland operation for greater reliability and efficiency.