Companies such as Climax, Repco, Cosworth, Hart, Judd and Supertec, which had no direct team affiliation, often sold engines to teams that could not afford to manufacture them. In the early years, independently owned Formula One teams sometimes also built their engines, though this became less common with the increased involvement of major car manufacturers such as BMW, Ferrari, Honda, Mercedes-Benz, Renault, and Toyota, whose large budgets rendered privately built engines less competitive. Cosworth was the last independent engine supplier. Beginning in 2007, the manufacturers' deep pockets and engineering ability took over, eliminating the last of the independent engine manufacturers. It is estimated the major teams spend between €100 and €200 million ($125–$225 million) per year per manufacturer on engines alone.