IRS? On a drag car? Why would that be needed? Something else for the factory to install to try and justify the $80K price tag. And 3.08s in the rear? Those use-ta be highway gears. How is that beneficial on a quarter mile car? Unless the tranny gearing is so low in 1st and 2nd to pull them. I don't know. I guess the cars are suppose to be 10 second or better in the1/4 mile. May be impressive, but sorry, these new fangled computer cars don't excite me. People sitting around the pits, with their lap tops on the roofs, trying to figure out fuel curves and boosts. I miss the days of carburetor tuning, timing adjustments, valve lashing, and hi-compression. Hell, about 50 years ago, Chrysler sold the Hemi 68 darts which were 10 second cars, in those days. Even the 64 427 dual quad Ford Thunderbolt Fairlanes were about the same times. So here we are, in the future, with all the technology, and they're boasting about the highest HP of any time. It seems to me, they just made them much more complicated. But in the new hi-performance cars defense, they will do it with better gas milage, and cleaner burning at idle and cruise.