Two new teams came into Formula One in 1997: Stewart, who arrived with the backing of the Ford Motor Company; and Lola, which only entered the 1997 Australian Grand Prix after the team's dismal performance in the Grand Prix which saw a lack of sponsorship for the next Grand Prix in Brazil. The former Ligier was sold from Flavio Briatore to Alain Prost and became Prost; while Footwork reverted to the "Arrows" name and switched from the Hart engines used in to Yamaha engines. Tyrrell changed their engines as well, swapping the Yamaha engines in preference to the Ford engines. Jordan-Peugeot signed up highly rated British engineer Dr John Davis. He helped the team with its new windtunnel facility at Brackley, the tunnel itself was funded by Ferrari in exchange for Eddie Irvine who moved to Ferrari the previous year. Sauber, in partnership with new sponsor Petronas, formed Sauber Petronas Engineering and through the newly established engineering company secured the licensing rights to engine and gearbox components from Ferrari, allowing them to build and run nearly identical units to those used in the Ferraris. The engines were branded as "Petronas", in deference to the role the company played in their development.