This is a 1990 C4 Cabriolet with the 5-speed manual. It is a West Coast car I purchased from the third owner, a professor in Arkansas. It is a fantastic driver with some nice upgrades and original parts retained. Although it is not a trailer queen, I never wanted one of those - just a car I could drive and perhaps even bring the kids along with me. Since owning it, I performed the costly and involved D. Moris hardtop conversion, which was worth every penny.
Background Documents
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| Original owner registration | 
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| VIN sticker | 
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| Owner's manuals | 
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Receipts
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| Coco mats | 4 piece Coco mat set for 964 |
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| RUF Speedline wheel refinishing | Repainting the lips of the RUF Speedline wheels |
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| Sumitomo HTR Z5 wheels | New tires for the RUF Speedline wheels |
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| RUF center caps | Authentic RUF center caps for the Speedline wheels. |
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| RUF Speedline wheels | A set of authentic RUF Speedline wheels in need of light cosmetic reburbishment. |
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| Transport fees for hardtop from port | Cost to get 964 hardtop picked up from BWI and shipped to shop |
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| D. Morris factory hard top | Replica hardtop for the 964 cabriolet |
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| Windshield wiper arm covers | Replacement plastic covers for twin-spring wiper arms |
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| Varta OEM battery | OEM Varta Porsche battery |
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| Wiper arms | Replacement OEM NOS wiper arms |
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Projects
| Date | Title | Overview | Image |
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| De-tinting the 964 | At long last, the ancient 90s-era tint has been removed from the 1990 911. This was a big deal to me, as it was distorting the intended visual impact of the D. Morris hardtop which had crystal-clear OEM glass. Tint - especially old tint from the 80s/90s - just… more |
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| 964 hardtop install complete | This has been a long time coming: the installation of my D. Moris hardtop on the 1990 911 C4 Cabriolet. My satisfaction with this project is complex. First, the important details: it is quiet. There is much less noise in and around the cabin. It… more |
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| Final fitment of the D. Moris 964 hardtop | The D. Moris hardtop is effectively done on the 964, with all major hardware installed and the interior back together. The fitment is excellent. The kit itself was pretty minimal on hardware, which is a backhanded compliment because it means the design… more |
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| Update on 964 hardtop conversion | In the days after deciding to plunk down a bunch of cash on a hardtop for my 1990 911 Cabriolet, I saw a picture of the same hardtop on a later 993. I will admit: I didn't love how it looked. There was something about it that just looked "off," which is always a risk… more |
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| Is my 911 the most reliable car I own? | Since I purchased a 1990 911 C4 Cabriolet, I've barely racked up 50 miles on it. Driving has been limited; this is mostly due to never having enough time, especially since transitioning to full-time self-employment. However, I have to admit that after taking… more |
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Maintenance
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| Hardtop painting | Paint of the D Moris hardtop |
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| Annual service | Battery replacement, engine oil service, general check-over |
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| Front bumper respray | Respraying a replacement front bumper |
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| Initial inspection and 3rd brake light install | My local shop did an overall inspection of the car about a month after I purchased it. They also installed the removed 3rd rear brake light and swapped on the stock D90 wheels that had been replaced with different wheels. In addition, they noted a slight differential… more |
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| Suspension refresh, oil cooler replaced, drive belt, spark plugs, distributor belt | Maintenance by the previous owner to address the following:
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| Alternator replacement, A/C system rebuild | This service involved a complete rebuild of the A/C system along with an alternator replacement.
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| Tune up, front brakes, DME replacement | When car was still on West Coast, John Walker's Workshop performed the following:
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| Early maintenance book stampings | These are early maintenance book stampings from the first year of the 911's in-service life. |
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