Motor Trend recently went for a test drive of the 2014 BMW M6 Gran Coupe (full post: 2014 BMW M6 Gran Coupe First Drive ). Before the test drive, they had a chat with Maximillan Ahme who is the development chief. He explained that each of the closely related M cars (the lineup of M5/M6) has a unique suspension. Each car gets its own set of springs, dampers, anti-roll bars, and electronic damping system calibrations. This means that they aren't all equal in terms of performance. So how do they rank? Well, it should be no surprise that the M6 convertible is the least sporty, with the most touring-oriented suspension setup. What was surprising, though, is where the M5 ranks. It's not the top or tied for first spot. It's not even second. It's third - the only car that ranks below the M5 is missing a roof - the M6 Convertible. The M6 Gran Coupe is second and the M6 Coupe takes first place. The measurable difference in performance between the M5 and the h
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