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Originally Posted by airbiteses
Hmm...I'll see. In Poland, the law prohibits the use of illegal LEDs and Chinese xenons. And in addition, the wheels must not protrude behind the fender.
The Ibiza V has no Cx listed. But the Ibiza IV had 0.33 Cx and the areo version 0.30 Cx, i.e. rear spoiler, rear wheel spoiler, full front grill and special wheel covers.
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Since the SEAT automobile has never been offered for sale in the USA, I had to do some research on the Ibiza.
The SEAT website was too difficult to navigate on my phone, and I ended up relying on 'Automobile Catalog' website for 'estimated' drag coefficients.
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* The GEN-I Ibiza was designed by SEAT, Italdesign, Karmann, and Porsche, and was estimated at Cd 0.34. Volkswagen acquired SEAT in 1986, two years into the Ibiza production.
* The GEN-II design is credited to Giorgetto Giugiaro @ Italdesign, with an estimated Cd 0.33.( Giugiaro had done the design for VW's Golf, Polo, Jetta, Scirocco, others... ).
* The GEN-III was designed by Walter de Silva, and is estimated at Cd 0.31.
* The GEN-IV was designed by Luc Donckerwolke, and is estimated at Cd 0.32. Two years into production, Auto Express did an article comparing the aerodynamics of the Ibiza, to that of the Citroen C3. Cd 0.33 and Cd 0.30 was mentioned, however, the writing was so ambiguous that, I never could figure out what Cd was attributed to what car.
* The GEN-V was designed by Julio Lozano, who is currently, head of exterior design for both SEAT, and CUPRA, their electric vehicle division. In 2017, the first year, the car was estimated at Cd 0.32.
In 2021, the Ibiza underwent a facelift, with an estimated Cd 0.31.
The 2023 Ibiza is estimated also at Cd 0.31.
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The official SEAT website may have specific aerodynamic details for the cars.