Coupe-like performance and a stronger structure—and it looks fantastic, too.

We usually assess convertibles in terms of structural rigidity, the square root of all vehicle dynamics. Rubbery bones don’t enhance transient response, and there’s the disconcerting phenomenon of dashboard and steering column jiggling to the beat of slightly different sambas.

But that’s not the biggest concern of a team convertibilizing a fastback coupe. They’re wondering whether their baby will be seductive. Makes sense, right? After all, a guy surveying the traffic at a hookup bar isn’t thinking about structural rigidity (other than his own).

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Rough rider: After 13 months with Lexus’s lusty M3 fighter, we have just one suggestion: Fix the ride!

Every so often, our long-term fleet acquires a special kind of car. Not a 10Best winner. Not a comparison-test winner. Rather, a car that changes its segment or signals a immoderate shift in its maker’s attitude. The IS F does both. It’s a Lexus with true enthusiast credentials. This is roughly equivalent to saying it’s a granny who writes in regularly to Penthouse Forum.

The F stands apart from Lexus’s sporty IS line of cars with its large fender flares, 19-inch BBS wheels with matching summer-only tires, and a hood with a serious power bulge. Beneath that bulge resides an immensely powerful 5.0-liter, direct- and port-injected V-8 that delivers 416 horsepower through a slick eight-speed automatic. This illusion setup is accompanied by a thunderous exhaust soundtrack.

Keep Reading: 2008 Lexus IS F – Long-Term Road Test

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