A few days ago, I made a post about about Motor Trend's test of the Audi S8. It does a 0-60 mph sprint in 3.5 seconds and goes through the 1/4 mile in 11.8 @ 118.3 mph.. very impressive numbers. Even more so when you look at a couple other cars: 2012 Porsche Panamera Turbo S 0-60 mph: 3.5 s 1/4 mile: 11.8 s @ 118.0 mph Power: 550 hp Torque: 553 lb-ft Weight: 4,388 lb 2012 Audi R8 GT 0-60 mph: 3.5 s 1/4 mile: 11.5 s @ 125.1 mph Power: 560 hp Torque: 398 lb-ft Weight: 3,484 lb Now let's compare those to the Audi S8 0-60 mph: 3.5 s 1/4 mile: 11.8 @ 118.3 mph Power 520 hp Torque: 481 lb-ft Weight: 4,619 lb The Panamera and R8 have weight to power ratios of 7.98 lb/hp and 6.22 lb/hp. The S8? Well, that one has a weight to power ratio of 8.88 lb/hp... The identical 0-60 time of the R8 GT and S8 can somewhat be explained by their engines' way of induction. Since the R8 is NA, the torque curve probably isn't as meaty so even though it weighs a lot less an...
A couple of weeks ago, I posted my first impressions of Michelin's PSS vs Firestone Firehawk Indy 500 tires. I've run PSS's for several years on the Boss, but I'm trying the Indy 500's for the first time. In short, I was worried about the narrower tires (I was running 285/35/18 PSS but could only find the Indy 500 in 275/35/18) and tread squirm, but I was happy with them up to that point just driving on the street. I had the chance to drive on them for three track days now. So what were they like? After my first session, they made an impression that basically persisted for the rest of track sessions on them. Phenomenal, unmatched value. Now, if value is something that stands out above all else, it typically means the compromise between qualities you want and those you don't is less than ideal, but the value is attractive. This is no different. I'll start with the bad, which really boil down to two: ultimate grip and grip longevity. Grip is noticeably l...







