When Zen, then Zender...

When Zen, then Zender

If you are browsing these pages, you likely aren't here by accident, and introducing Zender to you would be like carrying coals to Newcastle. I must admit, I am not typically a fan of tuning. It is very thin ice; it takes so little for an attempt at improvement to turn into a parody that hurts the eyes, leaving a once-beautiful car looking like a lady with glued-on lashes and overfilled lips—more an object of pity than admiration. That makes it all the more impressive when a tuner manages to identify the "blank spaces" a designer left behind and fills them with sensitivity and taste.

If any company has historically succeeded in this field, it is certainly the German firm Zender. I admire the Germans for their technical solutions and their sense of sophistication and quality, but when it comes to design and aesthetics, the Italian gene pool has always reigned supreme. One might think that putting Bratwurst on a Margherita wouldn't be a great idea, but lo and behold, it worked.

Hans Albert Zender founded the company in 1969 in Bassenheim at the age of just 23. He started by producing custom fiberglass fenders and bucket seats for NSU TT cars. His most significant era was undoubtedly the 1980s, when he supplied full body kits—spoilers, side skirts, and custom-design wheels—for VW, Ford, Fiat, Maserati, and even Ferrari.

Unfortunately, just as every era has its winners, there come moments when they exit the stage as customer interests shift elsewhere. This same fate befell Zender, which ceased the production and sale of automotive accessories in 2008, although the company continues to operate in other sectors. Their last major automotive creation was in 2008, an aggressive body kit for the Alfa Romeo 4C. Subsequently, the firm transformed primarily into a supplier of carbon fiber components.

Just as we were tormented in school with phrases like "you must be able to rattle this off if someone wakes you at midnight," I must say that if someone woke me at midnight and demanded an answer for the most beautiful wheel design for an Alfa Romeo, I would answer without hesitation, even in my sleep: Zender Milano.

Alfa Romeo always had a gift for having its wheels designed and manufactured by renowned makers, be it Cromodora, Campagnolo, Speedline, or "Benzoni" (BWA). All have become classics, yet for me, one type represents the absolute pinnacle. These were the original design discs from Speedline with perimeter bolts, produced, for example, for the Alfa 75 in a 14-inch size (ASN – Allestimento Sportivo Numerato) and most famously as a 16-inch two-piece wheel for the Alfa SZ/RZ. Zender took this design and subtly refined it, but most importantly, upsized it to 17 inches. It is actually shocking how increasing a rim by just one inch can work such incredible wonders for a car's appearance. Whether you fit these wheels to an Alfa SZ, an Alfa 75 (ideally a 3.0 or America), an Alfa 164 (ideally a QV), or an Alfa GTV6, they become different cars altogether. Very typical for these discs was the "two-tone" finish—silver on the outer face with a dark shade in the recesses, whether in black or gunmetal grey.

It is interesting that although these wheels were originally created for cars from the turn of the 80s and 90s, their identical pitch circle diameter (PCD) allows them to be fitted to the Alfa 156, GTV, or Spider, all of which they suit remarkably well. In this case, Zender more or less rode the design wave set by Speedline, but these 17-inch wheels have now become a collector's item, with sets in good condition selling for 2,000–3,000 euros. Similarly sought after are the Zender Siena wheels in 17 or 18-inch sizes, which were most commonly seen on the Alfa GTV (916) and Spider.

But let's move from wheels to body modifications. Zender really made a name for itself among Alfa Romeo fans after taking on the GTV6. The design of the Alfa GTV6 is, in its own way, the embodiment of 80s style in every respect—hard, angular, bold, and non-conformist. No smoothness, no compromise. All or nothing. In my opinion, Zender managed to take this character a step further with its body kit. The modified hood with an even larger bulge, the new bumper design that flows into the fenders, and the reshaped side skirts turned the car into a real street brawler. My only criticism lies with the rear wing; I feel like the inspiration ran dry there, and it was 'phoned in' with a generic, typical tuner wing that actually hurt the rear aesthetic. I think a subtle extension of the ducktail with a low lip would have looked more tasteful. But then again, aesthetics are purely subjective, so please take this as just my opinion.

If there is one Alfa Romeo where I believe Zender's body kit did a tremendous job, it is the Alfa GTV. Alfa Romeo clearly thought so too, as they took the body kit under their wing, developing it in collaboration between Zender and Centro Stile Alfa. It was offered as optional equipment known as Allestimento speciale. The advantage was that it could be ordered regardless of the engine choice. This 'Aerokit', as it was sometimes called, included a front bumper lip that visually lowered the car while increasing front-axle downforce, completely redesigned side skirts that also lowered the profile and channeled airflow via their distinctive contours, and, of course, the most dominant feature: the rear wing.

I believe this wing is, and always has been, the main point of contention. It divided Alfisti into two camps—those who hate it, claiming it ruins the original silhouette of the trunk lid, and those who love it. Personally, I was a poacher turned gamekeeper. I used to own a black GTV 2.0 TS without the wing and was a staunch opponent of it the entire time I had the car. Then came the turning point. The Twin Spark engine simply didn't excite me, and I knew from the start that the only proper solution for a GTV is the V6. When the right one appeared (featured in a video report), the decision was made. However, it had the wing—or rather, the full Aerokit, including the Cup version fenders. After bringing the car home, it took me a few weeks to get used to the change at the rear. But then it clicked. Today, I can't imagine the car without the wing; I feel it emphasizes the aggressive shape of the rear end.

And how can you tell if a car has a factory-fitted Zender Aerokit rather than a popular aftermarket installation? Look behind the rear window glass. If there is a third brake light and a rectangular cutout in the black film at the bottom edge of the glass, it's aftermarket. The wing itself has a brake light integrated into its edge—it wouldn't make sense for Alfa to place a wing with a second brake light in front of an existing one. Factory originals, therefore, do not have the window-mounted brake light, and the black edge of the glass is continuous.

When the GTV is further equipped with the front fenders featuring vents and grilles from the original Cup edition, I believe the design is absolutely perfect. The body kit wasn't just aesthetic, though; it primarily ensured better downforce and improved stability at speeds over 180 km/h. The rear wing produced up to 60 kg of downforce. Some sources claim an increase in top speed by 5–6 km/h, while others dispute this, explaining that higher downforce would actually slow the car down slightly. To dispel the speculation, I went to the source—the official manufacturer's brochure—and it's quite clear. The Aerokit increased the top speed of the 2.0 TS from 215 to 220 km/h, and the 3.0 V6 from 242 to 248 km/h. It's fair to say that a GTV with the Zender body kit was, at the time, the fastest mass-produced front-wheel-drive car you could buy.

Lest anyone think Zender focused solely on design, it's worth mentioning their production of components like exhaust systems and lowered suspensions for a wide range of cars. For the GTV, they offered an exhaust with twin tailpipes that provided a beautiful, metallic, rasping sound, and they even offered a 'duplex' variant with twin pipes on both sides.

Another car where Zender achieved the impossible is the Alfa 166—specifically the pre-facelift version. I apologize to everyone, but I am a proponent of not interfering with the lines a designer created as a whole. And it doesn't matter whether it's an Alfa Romeo or any other car.

In my opinion, the Alfa 166 is a design masterpiece that the general public failed to fully appreciate. Tailoring a suit for a nearly five-meter-long limousine that combines two completely opposing worlds—sportiness and nobility—is truly impressive. But things must be understood in a broader context. A carmaker doesn't produce cars just to please die-hard fans; it needs to make a profit for operations, salaries, and innovation. If only hardcore enthusiasts buy a car, the factory might fold after three models. And the first version of the 166 simply didn't resonate with the wider audience as well as the 156 did. The facelift was, in a way, forced, aiming to attract buyers who found the small headlights difficult to stomach. I, on the contrary, find them to be an iconic element. But we will focus on the Alfa 166 another time; now back to Zender. They managed to produce a very subtle body kit that seemed to give the 166 exactly what it was meant to have. It visually lowered and widened the car, adding 'meat' exactly where it was needed. Personally, I must say that if I were buying a 166, I would only go for a specimen with this body kit. Despite the fact that manufacturers of large sedans today predominantly serve us dark colors, the Alfa 166 managed to look incredible in shades of purple, bordeaux, or Azzurro Nuvola. For the 166, Zender again created a set of accessories in the form of modified side skirts and bumpers, thanks to which even the facelifted version could flourish and mature.

Finally, I must mention the Alfa 156, where someone at Zender must have broken loose on a Friday afternoon after everyone else had gone home, searching for a shape for the rear wing. Or perhaps they were looking at a Ford Escort RS Cosworth and thought, 'if they can do it, why can't we?' The wing that they managed to fit onto the trunk lid could easily function as an improvised bookshelf or a garage rack. This wing, along with the new design of the side skirts and front bumper, could once again be officially ordered as part of the Linea Accessori directly at the dealership.

Those were the days…….

Photo: Filip Hron  2026