Leather, definitely present... present as inside a tannery or an old west leather goods store. And ah, the gasoline; the result of the combined vetiver, cedar, ozonic violet leaves. The leather and the gasoline effect compliment each other, giving, at first, some 'tough/bad guy' vibes; think of leather jackets, dark alleys, baseball bats at the shoulder, chopper bikes, muscle cars, metal-frame and wood-grip guns, hard rock, heavy metal, the Terminator. However, that's the first minutes, about 20; after that, it mellows nicely. The leather continues, but the gasoline slowly fades, giving way to nutmeg, musk, amber, flowers, and citrus zests, and in the process to some sophisticated vibes; think of a cigar-smoking and bourbon-or-espresso-drinking bearded man in a three-piece suit, slow blues, R&B, high-end old west, polished brown or tan brogues or dress boots, the night, a room with dim lights or a fireplace while it's raining outside, a black Jaguar E-Type or Chevy Corvette C1, noir films, the series' Lucifer.
I perfectly understand why some people (myself included) love this and why some others hate it; this is very, very masculine; manly as f... hell, specially for the first minutes. I think it is an acquired taste (like many things in life). In terms of craft beer, this is the equivalent of an IPA or a toasty stout; regular light-lager-only drinkers will obviously have a rough time the first time(s). Hell, it's even like classic cocktail or neat spirit sipping for a regular beer guy, or for those who drink spirits only in shots or heavily sweet and/or diluted cocktails; there's nothing wrong in liking fresh or blue scents (after all, there's a moment and place for everything), but yeah, I think you get me. This fragrance shines in cooler weather; winter all day, spring and fall nights and afternoons, maybe even some special night dates in summer. For whatever-you-hold-dear-and-sacred sake, don't wear this in shorts and sandals; it's simply wrong, and people who notice it will rightfully think you have no idea of what you're doing. Likewise, don't wear this in the beach, or in a summer high noon (maybe unless you're in an old-west something...?), or if you're too young (having said that, I think some teenagers could pull it off quite nicely depending on context, but it's risky). Finally, while there are illustrated ladies who love when a man wears this (because, well, masculine scent), some others will not like it and prefer a fresh and nice (but sometimes-plain-or-boring-for-us) smelling guy. Chances are that girls who don't like Sauvage, Acqua di Giò or Light Blue because they're relatively common, they're too fresh (then again, context) and/or they are not manly enough, will in turn like Fahrenheit.