BMW 325i Cabriolet E30 Alpina B6 3.5 Umbau (1991)
1991 BMW 325i Convertible Alpina B6 3.5 conversion with original Alpina engine, limited-slip differential, Bilstein suspension, inspection rating: 2
Overview
The provision is 5% + VAT of the sales price and at least 500 € + VAT.
BID HISTORY
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Start sellingBMW 325i Cabriolet E30 Alpina B6 3.5 Umbau (1991)

Kickdown's Take
by Moritz HelbichThis E30 convertible features a unique body build with numerous original Alpina parts and, as a highlight, an Alpina 3.5-liter six-cylinder engine producing 254 hp. This transforms the BMW into a true powerhouse convertible! It also includes additional technical upgrades such as a Bilstein suspension and a limited-slip differential. The car is in excellent condition, both inside and out. Perfect for anyone who finds a standard E30 too ordinary!
Kickdown Check
- On-site kickdown assessment completed
- 135 photos
- Video including engine running
- A 2024 appraisal report is available, with a condition rating of 2 and a market value of €45,500
- Mileage of 163,615 kilometers, partially verifiable
Facts & Specifications
- Year of manufacture: 1991
- Engine: Original Alpina 3.5-liter inline-six (Type B11/3) with 254 hp
- Transmission: 5-speed manual transmission (from BMW 535i E34)
- Exterior color: Diamond Black Metallic
- Interior: Leather in special Cinnamon color
- TÜV valid until August 2026, H-license plate
- Equipment:
- Bilstein sport suspension with strut brace
- 25% limited-slip differential (M3 E30)
- Stainless steel exhaust system with manifold
- Alpina front spoiler and design elements
- Alpina alloy wheels (16 inches)
- Sport leather steering wheel with Alpina emblem
- Alpina additional instruments
- Radio-CD navigation system
- Convertible top in special color
Condition
Exterior
- The exterior is painted in Diamond Black Metallic.
- The vehicle has been partially repainted
- The paint and body are in very good condition with only minor age-related signs of wear
- There are no known damages or defects on the body
- There is no known rust
- It is equipped with Hankook tires from 2018 with good tread depth
- The cinnamon-colored convertible top was replaced in 2017 and is therefore in very good condition
Interior
- The car features a high-quality leather interior in the special color Cinnamon.
- The interior is in restored, nearly like-new condition
- There are no known damages to the interior
Mechanics
- The vehicle is ready to drive immediately. There are no known technical defects
- Converted to an original Alpina 3.5-liter engine with 254 hp
- Chassis, drivetrain, and exhaust system comprehensively optimized
- The modifications are registered
- The 5-speed manual transmission shifts flawlessly
- Regular maintenance has been performed
- A service should be performed in the near future
History
Ownership history
- 2024 to present: 7th owner
- 2015 to 2024: 6th owner
- 2006 to 2015: 5th owner
- First delivery in Germany
Service history
- Regular maintenance performed
- A comprehensive investment history dating back to 2015, including invoices, is available
Documents
- German vehicle documents (Images 127 to 131)
- Appraisal report with a market value of €45,500 from 2024 (Images 132 and 133)
- Alpina engine badge (Image 134)
- Investment history (Image 135)
- Invoices (Images 136 to 186)
- TÜV reports (Figures 187 to 190)
Operating permit (Images 191 to 196)
Summary
For sale is an exceptional Alpina B6 3.5 conversion based on a 1991 BMW 325i Convertible in Diamond Black Metallic exterior paint and featuring a leather interior in the special color Cinnamon. The vehicle has a mileage of 163,615 kilometers, part of which is verifiable. The E30 has undergone extensive technical upgrades. At its heart is an Alpina 3.5-liter inline-six engine producing 254 hp, paired with a 5-speed manual transmission. The drivetrain is complemented by a limited-slip differential, a Bilstein sport suspension, and a stainless steel exhaust system. Visually and technically, the vehicle is in very good condition. The nearly mint-condition interior in the rare Cinnamon color and the refurbished soft top underscore the vehicle’s high overall quality. A valuation report confirms this condition and indicates a market value of €45,500. A rare opportunity to acquire a custom-built and technically fascinating Alpina vehicle.
Vehicle videos
Kickdown check
- Expert report available
- Kickdown photographer was on site
- Video of the vehicle available
- Main inspection
Transport
If you have any questions about shipping or transportation, please do not hesitate to contact us at shipping@kickdown.com . We would be happy to provide you with a non-binding offer for the transport of your new vehicle.
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Questions and Comments
Liebe Bieter, wir haben soeben Bilder vom Unterboden des BMW hochgeladen. Sie finden diese in der Bildergalerie (Bild 197 bis 202). Wir wünschen viel Spaß beim Bieten! Ihr Kickdown Team