The Toyota GT-One TS020 is exactly the same car as it was over it's lifespan, it just competed in 2 different classes during that time....
"In accordance with the FIA rules of the day, the GT-One had also to be developed as a legal road car. In fact the differences between the race and road versions were small: in road-going mode, the rear wing was set lower and the suspension ride height was raised. A smaller fuel tank was fitted and the addition of catalytic converters ensured the vehicle complied with emissions regulations." From UltimateCarPage
"Toyota decided to follow the route of Mercedes and evolve the GT-One into a GTP class prototype. Although the CLK-GTR required extensive modifications to become the CLR, the GT-One was already close enough to a prototype that extensive redesign was not needed."Wikipedia
They're exactly the same car (TS020 was the internal designation for the GT-One, followed on from the TS010) and as such it should stay on his list...