The new Infiniti M is one sexy, sultry machine. It looks tight, taut, and ready to pounce. It really makes a strong design statement, which is exactly what Infiniti should be doing. The interior is especially enticing, with an ambience that is at once ultramodern yet traditionally posh. I dare say that Infiniti and Jaguar are now leading the way in cabin design, a mantle once held by Audi. Or, at least, they are the equal of Audi.