Lagonda LG45 V12 Buying Guide

Buy an LG45 or V12 on documented engine files and honest Lagonda paperwork first. W.O. Bentley folklore still sells, but a soft coachbuilt pack or vague leftover claim rewrites the budget fast.

For this November 6, 2026 guide I read Car Collector International: Lagonda LG45 / V12 guide and Wikipedia: Lagonda V12. The mechanical cautions below come from those pages; the order of checks and the questions for the seller are my own practical recommendations. Any price figures in those sources are market snapshots, not a valuation of the car in front of you. So, compare it with recent sales of the same specification and condition. I also kept the advice to things you can see, hear or ask for on a viewing day. If a seller rushes you past a cold start or blocks a lift inspection, treat that as a signal and walk away before you spend report money.

Know LG45 and V12 families carefully

CCI dates the LG45 about 1935-1937 and V12 production about 189 chassis through 1940. Pick a documented car before you travel.

Ask about six-cylinder or V12 invoices

CCI wants continuous specialist files. Ask for the last invoice by shop and date.

Confirm short-chassis V12 claims carefully

CCI treats short-chassis sporting V12 cars as the most desirable specification. Match Lagonda paperwork before you bid.

Inspect coachbuilt timber carefully

Soft timber or panel repairs rewrite the budget. Photograph undertrays.

Keep a dated note of the cold start

Write idle quality, gearbox engagement and any smoke. Our cold-start test guide helps you brief that first start.

Prefer continuous Lagonda specialist files

CCI puts books and specialist invoices high on the list. Photos beat handshake stories.

Confirm LG45 and V12 identity carefully

CCI dates the LG45 about 1935-1937 and V12 production about 189 chassis through 1940. Match Lagonda paperwork before any leftover claim.

Ask about six-cylinder or V12 invoices carefully

CCI wants continuous specialist files. Ask for the last invoice by shop and date.

Inspect coachbuilt timber carefully

Soft timber or panel repairs rewrite the budget. Photograph undertrays before the bay is cleaned.

Keep a dated note of the cold start

Write idle quality, gearbox engagement and any smoke. Our cold-start test guide helps you brief that first start.

Photograph tyre date codes and brake wear

Fresh stickers on old rubber still fail a real ownership budget. Write the DOT week and drum condition.

Ask who can still support the car locally

Confirm a Lagonda or W.O. Bentley specialist booking window before you send a deposit.

Budget for short-chassis V12 paperwork

CCI treats short-chassis sporting V12 cars as the most desirable specification. Ask for written identity notes before you lock a bid.

Prove the identity before a deposit

Match the chassis number on the Lagonda LG45 / V12 to the title, any import papers and the plate on the car before you order a history report. Our VIN verification guide walks through that match, and imported-car report coverage sets expectations for cars that spent years overseas. Older chassis numbers may sit outside modern report databases, so confirm coverage before paying. NMVTIS covers U.S. title history only; it cannot replace foreign records or a physical inspection.

Get the repair scope in writing first

If the engine or timber story looks soft, get a Lagonda specialist written estimate before you go further. Look, a seller PDF or a folder of photos is a starting document, not independent proof of condition. Ask the inspector for written findings with local estimates, split into safety work and cosmetic wishes. The NYC consumer-agency used-car guidance tells buyers to have an independent mechanic check the car, and our pre-purchase inspection checklist helps you set the scope. Keep a dated note of the drive, the temperatures and any noises, because a seller who disputes your findings later will ask what you saw and when. Keep copies of texts and emails with the seller in the same folder as the PPI write-up so the timeline stays clear.

We are a licensed CARFAX and AutoCheck reseller, not affiliated with CARFAX, AutoCheck or Experian. Guest reports have been about $5.50, member reports about $4.50 and a two-report bundle about $6.75; confirm the price at checkout because it can change. A report can miss unreported work, so keep the inspection appointment even when the history looks quiet.

Sources

• Car Collector International: Lagonda LG45 / V12 guide
• Wikipedia: Lagonda V12
• U.S. Department of Justice: NMVTIS
• NYC DCWP: used-car buying tips