Question: This driver won his second career Indy 500 victory at the 1993 Indianapolis 500 as well as winning which other championships?
Sentence (from "McCormack Motorsports"): 2000 again saw 3 different drivers drive for the team and relative instability and lack of funding, along with two of its cars, this time driven by Ronnie Johncox and Robby Unser again fail to qualify for the Indy 500.
Relevant evidence: No