McLaren 720S Pre-Purchase Inspection: What to Check Before You Buy

A McLaren 720S pre-purchase inspection is a focused mechanical and electronic review of a used 720S before you buy it. It exists to find deferred maintenance, accident repair, and failing components on a car where a single repair can cost more than a year of ordinary ownership.

What a McLaren 720S Pre-Purchase Inspection Covers

The 720S is built around a carbon fiber monocoque, called the Monocage II, with aluminum subframes bolted to each end. The tub rarely fails, but the subframes and body panels show crash history. A proper McLaren 720S pre-purchase inspection starts there: panel gaps, paint depth readings, fastener marks, and underbody damage from low clearance. The front splitter and underbody panels scrape easily on driveways and speed bumps, so scuffs there are common; cracked mounting points or bent subframe brackets are not, and they point to a harder impact.

From there, the inspection should include:

• Proactive Damper Control suspension. The hydraulic system has no anti-roll bars. Check for leaks at the dampers and accumulators, and for fault codes. A car that sits noticeably lower on one corner after parking overnight often has a failing accumulator.
• 4.0L twin-turbo V8. Look for coolant weeping, turbo shaft play, oil leaks at the cam covers, and smoke on cold start.
• Dual-clutch transmission. Clutch engagement, shift quality in all modes, and any judder from a stop. The road test should include slow parking-lot maneuvers, where clutch wear shows up first.
• Carbon ceramic brakes. Rotor wear measurements and pad life. Replacement is expensive, so remaining rotor life should factor directly into the price you offer.
• Electronics. A full module scan, including airbag, IRIS infotainment, and the lift system.
• Service records. Annual service, fluid intervals, and whether the airbag or battery has been maintained.
• Tires and wheels. Date codes, matched brands front and rear, and curb damage. Old tires on a low-mileage car confirm long storage.

Why a McLaren 720S Pre-Purchase Inspection Matters More Than on a Normal Car

Supercars often sit. Low mileage is not the same as good condition. Cars parked for months develop flat-spotted tires, dried seals, and discharged batteries that mask deeper issues. If the seller jump-started the car for your visit, treat that as a finding and ask for a Battery Replacement check before you close.

Stored fault codes also matter. Many 720S problems appear first as intermittent warnings rather than drivability complaints, so an Electrical & Diagnostics scan belongs in every McLaren 720S pre-purchase inspection, not just a road test.

When to Call a Mechanic

Call before you place a deposit, not after. Book the inspection while the car is still at the seller’s location so the mechanic sees it cold, untouched, and in its normal storage condition. A cold start reveals smoke, rattles, and hesitation that a warmed-up engine hides. A mobile inspection also lets you buy out of state without flying out first.

Walk away, or renegotiate, if the seller refuses an independent inspection, cannot produce service records, or has fresh paint on structural areas.

Schedule a mobile McLaren 720S pre-purchase inspection with Novo Repairs and we will come to the seller’s location and give you a written report before you commit.

Frequently Asked Questions

How long does a McLaren 720S pre-purchase inspection take?

Plan on two to three hours. The electronic scan and road test add time beyond a standard used-car check.

Can the inspection be done at the seller’s home?

Yes. A mobile mechanic can inspect the car in a driveway, garage, or dealer lot with the seller present.

Does low mileage mean I can skip the inspection?

No. Long storage causes seal, fluid, and battery problems that mileage alone will not reveal.