Used Honda S800 Buying Guide: Engine, Chassis and Title Checks

A used Honda S800 is a fair buy when the engine revs cleanly, the chassis is solid and the title paperwork matches the car, because parts and specialists are scarce in the U.S. Honda built the S800 from 1966 to 1970 as the last of its early sports cars, as the Wikipedia S800 page covers. On Nov. 5, 2026, NHTSA recallsByVehicle queries for 1966-1970 Honda S800 model years returned no usable campaign list (the API did not find that vehicle), so run the VIN on the NHTSA recall lookup and lean on a specialist inspection.

Engine and redline habits

The S800 four is built to rev. Listen for bottom-end noise, check oil pressure and ask how the car has been warmed up and driven. A seller who redlines a cold engine is a warning. Ask for recent valve and timing service receipts.

Chassis and body

Check the sills, floors and suspension mounts. The car is light, so crash repairs show up in panel gaps and paint. Look for rust in the usual floor and arch spots, and ask about prior accidents.

Gearbox, brakes and cooling

Test every gear. Check the brakes for a firm pedal. Watch the temperature gauge; small radiators in period sports cars work hard in modern traffic.

Import and title path

Many S800s in the U.S. arrived as grey-market or early imports. Ask for customs and HS-7 papers if the car was never sold new here. Our 25-year import checklist and Honda recall check guide cover the next steps.

Finding parts and a mechanic

The S800 is tiny, high-revving and rare in the U.S. Parts often come from Japanese or European specialists, so ask the seller who has been working on the car. A pre-purchase inspection by someone who has seen an S800 is worth the travel cost. Sit in it before you commit; the cabin is small even by 1960s standards. Ask how the car was imported and keep copies of the customs and HS-7 papers with the title. Our grey-market import title guide covers how states title cars that arrived later.

When to walk away

• Bottom-end noise or low oil pressure.
• Crash damage with no records.
• No title, or a title that does not match the car.
• A seller who will not allow a specialist look.

Questions to ask the seller

• Is the engine original, and when was it rebuilt?
• Was the car imported, and do you have the papers?
• Where do you buy parts?
• Has the title ever been branded?

Reading the history on a decades-old car

Do not expect a long service log. Records from the 1970s and 1980s were often never reported, so the report matters most for title brands, odometer readings at title transfers and registration gaps by state. A car that moved from a coastal or rust-belt state to a dry one may have been retitled; look at the dates and ask why. An approved NMVTIS check adds salvage and junk records from insurers and recyclers. If the odometer readings go backward or the car shows as exempt, ask for the paper trail before you price it. Our odometer discrepancy guide explains what those entries mean.

Private-sale paperwork

Most cars like this sell privately. Make sure the name on the title matches the seller ID, the VIN on the title matches the plate and the stamping on the car, and any old lien is released in writing. Our lien release guide walks through that step. Pay by a traceable method, get a dated bill of sale, and do not accept an open title signed by someone who is not present.

How to price it

Clean S800s are rare and price as collector cars. Compare recent sales on Hagerty, and budget for parts shipping. Our import history guide covers thin U.S. reports.

What a fair S800 test drive shows

Warm the engine fully before you ask for high revs. The oil pressure should stay healthy, and the gearbox should take every gear without a fight. Listen for rod knock on a hot idle and watch the temperature in stop-and-go traffic. A car that overheats on a short drive needs cooling work before you negotiate. Bring a friend who can follow you and watch for smoke or fluid leaks.

What the report costs

As of early November 2026 a CARFAX bought direct usually costs around $44.99, and AutoCheck sits a little lower. We are a licensed CARFAX and AutoCheck reseller, not affiliated with CARFAX, AutoCheck or Experian. Our guest price has been about $5.50 a report, about $4.50 for members, and about $6.75 for a CARFAX and AutoCheck bundle. Confirm the price at checkout, since it can change.

On a car this old, read the report for title brands and odometer readings first; service entries are often thin.

Sources

• NHTSA recall lookup (API checked Nov. 5, 2026; no usable campaign list returned for 1966-1970 Honda S800 queries)
• Honda S800, Wikipedia
• NMVTIS
• Hagerty (valuation tools)