OK, it's time to get straight to the point -- Pirelli World Rally 24 is primarily a reference for the results of pretty much every rally championship on the globe. Think of any major sporting event involving rally cars and there's a 95% chance it'll be included here in this book, whether you be a fan of the mainstream World Championship, the British championship, Asia-Pacific, Middle East... Every stage victory from every category in every rally in every championship, looked at in scrutinising detail. Which as you may have guessed, makes Pirelli World Rallying a real rallying dictionary.
The WRC is covered event-by-event (around four pages for each event I recall) while many interesting features include articles on the Super 1600 (yes, with results for the 2001 season dominated by Sebastien Loeb), 100 years of Skoda Motorsport and so on. For the price, though, I don't think the articles in question are quite detailed enough to justify the high price of this book.
In fact, whole pages can be taken up by photos or advertisements which seem to render the whole thing shorter than it initially appears to be. But oh, what photos... this is genuine, high quality stuff, and it's not copyrighted imagery from a magazine either -- it's all exclusive to this one little publication. It's also worth noting that despite what the name suggests, there is no biased opinions in favour of Pirelli over Michelin. It's an honest account which sums the rest of the package well.
Overall, I'd question how it was worth buying the book, but I'm not disappointed. Even some of the most hardcore commercial websites don't get close to the enthusiasm reflected by this.