DESIGN INTELLIGENCEJuly 28, 2026·Mary · DEPIX Design Intelligence

The Vent That Cools Nothing

Look closely at the rear bumper of a great many premium cars and you will find a small, quiet lie. Those four fat chrome exhaust tips are decorative trim; the actual pipe exits discreetly underneath. That aggressive fender vent lets no air through. That imposing grille on the new electric SUV opens onto a solid blanked panel, because the car has almost nothing behind it to cool. Vents, scoops, grilles and exhausts are increasingly faked in the name of a sporty look - and it is one of the most revealing habits in modern car design.

The practice is not new, but it has become endemic, and not everyone accepts it. BMW recently drew a public line and ruled out fake exhaust tips, arguing its cars look purposeful enough without pretending. When a Toyota Supra engineer tried to justify the car's non-functional vents, the automotive press simply did not believe him. Buyers notice too: spending serious money and then discovering the last few inches of "exhaust" are plastic feels, to many, like an insult.

There are real reasons designers reach for the fake. A functional opening creates turbulence and drag, which hurts efficiency; a smooth blanked panel is often aerodynamically better than the hole it imitates. Electric cars need little of the cooling a combustion grille once provided, yet a century of design has made the grille a brand's face, so many marques keep the shape and close the hole rather than redraw their identity. The fake vent is frequently the cheaper, safer, more familiar choice. That is exactly what makes it a design-intelligence problem and not just a styling quirk.

Because this is, at its core, a question of honesty - and honesty in design is not a vague virtue. Dieter Rams made it a principle: good design is honest; it does not make a product seem more innovative, powerful or capable than it really is, and it does not try to manipulate the buyer with promises the object cannot keep. Dishonesty, in his framing, is a shortcut - a way to get people to accept something without doing the harder work of making the real thing good. A fake vent is precisely that shortcut: the visual reward of performance without the engineering that earns it.

And here is the part that matters for anyone who designs anything. Whether a form tells the truth is not a detail you can adjust at the end. It is decided at the concept phase, in the first conversations about what the object even is. A car conceived as "make it look fast" will grow fake vents as surely as night follows day, because the brief was about the appearance of function from the start. A car conceived as "be fast, and let the form express that" cannot easily fake anything, because its surfaces are downstream of real airflow, real cooling, real exits. The fakery is not added late by a cynical stylist. It is baked in early by the brief.

That is why the honest cars tend to be honest all the way through. The ones that went truly grille-less when they went electric did not lose their identity; they found a new one, because someone decided early that the face would tell the truth about what was behind it. It is harder. It means redrawing a brand's most recognisable feature instead of blanking it off. But it produces objects that age with dignity, because there is nothing to eventually feel cheated by.

The counter-argument - that customers expect a grille, that a vent-shaped indentation simply reads as premium - is real, and it is exactly the trap. Treating the buyer as someone who cannot accept change is its own kind of disrespect, and it is usually wrong: the cars that looked strange without a grille for a season now look like the future, and the ones clinging to fake apertures increasingly look like fancy dress.

You do not put fake doors and fake windows on a building to complete a composition. A car, a phone, any designed object deserves the same discipline. Decide early whether the form will be honest, because you cannot bolt integrity on at the end. The vent that cools nothing is never really about the vent. It is about whether the whole object is willing to tell you the truth.

Sources: