Porsche Boxster (2018)

1,089 real MOT outcomes analysed • 91.7% first-time pass rate

2018 Porsche Boxster

CarHunch analysed 1,089 real MOT records for the 2018 Porsche Boxster. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Generally reliable 11.7% above UK average
91.7%
pass MOT first time
UK average: ~80%
19,315
typical mileage
13,601–27,019 middle half
12.4%
ever had a dangerous defect
recorded at any MOT
0.29
avg MOT failures per car
over 5.1 tests on record

What to check before buying a 2018 Porsche Boxster

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a Porsche Boxster

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

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Mileage Distribution

Most 2018 Porsche Boxster vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

13,601
low mileage
19,315
typical
27,019
high mileage

Half of all 2018 Porsche Boxster vehicles fall between 13,601 and 27,019 miles.

2018 Porsche Boxster — Still on the Road

Strong survival — 961 vehicles still getting MOTs in 2025, 97% of the peak.

990 961 2021 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.

MOT History Averages

5.1
Avg MOT tests per vehicle
0.29
Avg failures per vehicle
2.4
Avg advisories per vehicle

Most Common MOT Issues — 2018 Porsche Boxster

Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.

  • 25.5%
    Nearside Rear Tyre worn close to legal limit/worn on edge
  • 24.4%
    Offside Rear Tyre worn close to legal limit/worn on edge
  • 22.4%
    Offside Front Tyre slightly damaged/cracking or perishing
  • 20.6%
    Nearside Front Tyre slightly damaged/cracking or perishing
  • 16%
    COVID-19 6 MONTH EXTENSION
  • 12.6%
    Nearside Front Tyre worn close to legal limit/worn on edge
  • 12.6%
    Offside Rear Tyre slightly damaged/cracking or perishing
  • 11.3%
    Nearside Rear Tyre slightly damaged/cracking or perishing

Data covers a 3-year window centred on 2018. Counts include advisories and failures.

Found a specific Porsche Boxster?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — Porsche Boxster:

1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2019 2020 2021 2022