Bitter CD Buying Guide

The Bitter CD was built between 1973 and 1979, according to the Wikipedia entry on Bitter Automotive. Confirm the offered Bitter CD matches its paperwork, then book an inspection that covers its construction and fitted equipment.

I used the Wikipedia Bitter Automotive entry when preparing this November 6, 2026 guide. Its specifications describe the model, not every surviving chassis. So, the checks below turn that background into questions for a seller and a workshop; they do not assign a failure rate or current market value.

Confirm the car is a 1973 to 1979 CD

The Bitter CD was built between 1973 and 1979, according to the Wikipedia entry on Bitter Automotive. The design grew from the Opel Coupé Diplomat concept, and Erich Bitter turned to Baur in Stuttgart for production. Ask for the build documents, registration history and any Bitter or club records. Compare the chassis identifiers with the papers. A small production run means that a clear file matters more than a polished photo set.

Check the Chevrolet V8 and its service record

The entry lists a 230 PS Chevrolet V8 of 327 cubic inches. Ask whether the engine is original to the car and who has serviced it. Request invoices and ask what has been replaced. Chevrolet engine parts are often easier to find than Bitter body items, which helps, but the installation and cooling still deserve a careful look. Have a specialist check for leaks, overheating signs and wiring repairs.

Ask about Opel Diplomat parts and Bitter trim

The CD drew on Opel Diplomat parts, and the entry says some items were taken from the Diplomat to make production practical. Ask which mechanical and trim parts are shared and which are Bitter-only. Get written answers about body panels, glass and lamps for anything damaged or missing. A shared mechanical part may be available while a body panel needs a specialist search, so price both before agreeing an allowance.

Inspect the hatchback body for rust and repair

The CD is a three-door hatchback coupe, so look at the tailgate opening, sills, floor and wheel arches with a specialist. Ask for photographs of any restoration or bodywork. Check panel gaps and the fit of the hatch. Have the inspector record what is original and what has been replaced. A car from the 1970s that has been repainted may hide corrosion, so treat a fresh finish as a question rather than a reassurance.

Put the identity and import file beside the inspection

The physical chassis identifier must agree with the sale documents before a report is ordered. Use our VIN identity checks to organise that comparison and our imported-car report guide to understand why foreign history may be thin. Ask for original registration, import and ownership papers as applicable. NMVTIS offers a U.S. title-history route with defined coverage; it does not certify a bespoke build or replace foreign records. A fake PDF can disguise an ownership gap, so verify evidence through the issuing source rather than accepting a seller screenshot.

Agree the specialist work before leaving a deposit

Tell the shop which version and components it will see, then agree lift access, a controlled road test and a written description of limitations. Our pre-purchase inspection checklist helps frame the appointment, while NYC used-car guidance recommends an independent mechanic. Ask the specialist to separate immediate safety work from cosmetic preferences and optional upgrades. Look, a repair estimate is useful only if a supplier will actually provide the required part. Have the shop obtain a response for any known missing item.

Keep the offer conditional on the findings you care about. Put any seller repair promise in the purchase agreement. If the workshop cannot establish structural condition or a route to a needed safety part, defer the deal rather than inventing a discount. The final decision should reflect the documented car and your intended use, not a figure copied from a launch story.

Write down what the viewing showed

Keep a dated note of what you saw on the Bitter CD: chassis identifiers, warning lights, fluid leaks under the car, tyre dates, panel gaps and any part the seller could not show. Photograph each item. Send that list to the specialist before the appointment so the inspection starts from facts, not from the advert. If the seller will not allow photographs or lift access, ask why before you go further. A rare car rewards slow, written checks more than a quick decision made because another buyer might appear.

We are a licensed CARFAX and AutoCheck reseller, not affiliated with CARFAX, AutoCheck or Experian. Wholesale reports cost a few dollars; confirm current coverage and the total at checkout. A quiet report can miss unreported repairs. Keep the independent inspection even if the seller sends an impressive PDF.

Sources

• Wikipedia Bitter Automotive entry
• U.S. DOJ NMVTIS
• NYC used-car buying guidance