But, whatever situation we end up being in, I'm going to be committed to it and I am going to make it work. I'm really excited."
Asked whether he had contemplated chasing a seat in the GP2 Series, Walker admitted that, while the championship was tempting, it was another level altogether when it came to fund-raising.
"The biggest difference between World Series and GP2 is the cost - there are deals going [in WSbR] for half the amount you'd pay for GP2," he revealed, "I'd love to be able to do GP2 at this point in my career, with it being so close to
Formula One and very much a must-have on your CV, but [look at] the people who have gone [to F1] from World Series - Kovalainen, Kubica, Montagny..... But, to drive, the cars are fundamentally very similar. Obviously, the tyres are different and the amount of power the GP2 has makes it about three seconds quicker over a lap, but the driving styles are very similar, and I think [the WSbR] still prepares you massively for the jump to
F1."
The World Series also has other attractions for the aspiring top flight driver, with solid promotion for all and an enticing prize driver for the winner.
"As a driver, it makes a huge impact to be performing in front of crowds that big but, from a selling point of view, when you're selling sponsors to a weekend and they turn up and they're not the only ones there," he smiled, "People want to see the drivers, see the cars, get close to the action and [they] can bring the family, girlfriends, wives... The shops, the entertainment and family areas, it's a proper 'event' and I'm yet to speak to or hear a person who's not enjoyed themselves.
"Then the [Renault F1 test] is a massive incentive - any guaranteed day in an F1 car is worth a season's-worth of hard work. That's going to be the aim for the championship this year."
Walker clearly has the title in his sights for 2008, and sees no reason why, if he continues along the same trajectory as last season, he cannot achieve his aim.
