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£141,845

1988 Porsche 911 Turbo Cabriolet M505 Slant Nose

United States • 15 Apr 2025

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Vehicle Details

AI Listing Summary

This 1988 Porsche 911 Turbo Cabriolet is a rare M505 slant nose model with 42k miles. It features a modified engine, recent maintenance, and comes with desirable documentation, though it has some paintwork and minor imperfections.

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Condition 

6

The car is described as being in good condition. It has had some paintwork done and has some exterior imperfections, but it also comes with a Porsche Certificate of Authenticity, service records, and an accident-free Carfax report. The car has been modified with an engine tune and free-flow exhaust system.

/ 10

Transmission:

Manual

Chassis No:

WP0EB093XJS070379

Odometer:

42,000 miles

Reg Number:

[Reg Number]

RHD/LHD:

LHD

Turbocharged 3.3L Flat-Six Four-Speed Manual Transaxle Limited-Slip Differential Grand Prix White Paint Black Partial Leather Upholstery Power-Operated Black Soft Top 16" Body-Color Fuchs Wheels Heated Front Seats Adjustable Front Lumbar Support Blaupunkt Cassette Stereo Tool Roll Porsche Certificate of Authenticity Accident-Free Carfax Report
This 1988 Porsche 911 Turbo is a white-over-black factory M505 slant nose cabriolet that spent time in several states before it was sent to Germany in 2015.

Subsequent work reportedly included tuning the turbocharged 3.3-liter flat-six, remapping the fuel injection system, and fitting a free-flow exhaust system before the car returned to the US later that year.

Equipment includes a four-speed manual transaxle, a limited-slip differential, a power-operated black soft top, partial leather upholstery, a Blaupunkt cassette stereo, and heated seats with adjustable lumbar support.

Maintenance following the seller’s acquisition included a valve ad...

Points of note

£55,816

Lowest Price (Since 2020)

£156,844

Median Price (Since 2020)

£428,134

Highest Price (Since 2020)

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World Record

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Bottom 40%

The sale price places it in the bottom 40% of sold prices we've ever seen for the Porsche 911 (930) Turbo Cabriolet Flatnose

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Average Price

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Rare Sale

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Previous Sales

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MOT Information

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Latest MOT Mileage

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Registration Date

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MOT History

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MOT Mileage Trend

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