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UNM 404R

1977 Porsche 911

White Petrol 2993cc
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MOT Status

Expired
Expires8 Aug 2026
Tests20 (20 pass, 0 fail)
Pass rate100%

Mileage

159,184 mi
Last recorded159,184 miles
Recorded on7 Aug 2025
Typical for 1977 Porsche 911101,755 mi

Significantly above average — investigate

4 checks still locked for this Porsche
Stolen
Finance
Write-off
Keepers
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Vehicle Details

RegistrationUNM 404R
MakePorsche
Model911
Year1977
ColourWhite
Fuel typePetrol
Engine2,993cc

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50+ data points
Finance Check (Experian) Insurance Write-off Salvage Auction Stolen Check Previous Owners Ex-Taxi, Police, NHS Mileage Anomaly Import / Export Scrapped Check Plate Changes

MOT History

20 pass
Pass 7 Aug 2025 159,184 miles
Pass 7 Aug 2024 159,034 miles
Pass 9 Aug 2023 158,160 miles
Pass 1 Aug 2022 157,468 miles
Pass 15 Jul 2021 156,547 miles
Pass 1 Aug 2020 156,419 miles
Pass 3 Jul 2019 156,109 miles
Pass 22 Jun 2018 155,106 miles
Pass 5 Jul 2017 154,708 miles
Pass 27 Jun 2016 153,514 miles
Pass 17 Jun 2015 152,980 miles
Pass 21 Jun 2014 152,848 miles
Pass 5 Jun 2013 150,734 miles
Pass 12 May 2012 149,517 miles
Pass 14 May 2011 146,096 miles
Pass 15 May 2010 144,926 miles
Pass 8 May 2009 142,469 miles
Pass 2 Apr 2008 138,791 miles
Pass 30 Mar 2007 135,025 miles
Pass 11 Oct 2005 131,574 miles

How Reliable is the Porsche 911?

Based on 977,057 MOT tests across 73,061 vehicles.

85.2%
Pass Rate
1,867
Miles/Year
47
Year Lifespan
73,061
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 20,869
position lamp(s) not working 7,590
Windscreen washer provides insufficient washer liquid 6,439
Headlamp aim too high 6,432
Brake pipe excessively corroded 5,466
Full Porsche 911 reliability report

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UNM 404R is a 1977 Porsche 911 in White with a 2,993cc petrol engine. This vehicle has been through 20 MOT tests with a personal pass rate of 100%.

Across all 1977 Porsche 911 models, the average MOT pass rate is 76.2% with a typical mileage of 101,755 miles. This particular vehicle has performed better than the average for its year.

The most common reason a Porsche 911 fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 20,869 recorded failures. If you're considering buying UNM 404R, it's worth having these areas checked by a mechanic before committing.

The Porsche 911 typically stays on UK roads for around 47 years. At 49 years old, this Porsche 911 is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of UNM 404R?

You can check the full history of UNM 404R by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was UNM 404R registered?

UNM 404R is a 1977 Porsche 911, first registered on 18 April 1977.

Is UNM 404R safe to buy?

The MOT history for UNM 404R shows 20 tests with a 100% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does UNM 404R have outstanding finance?

Finance checks require a premium vehicle report. This checks against all major UK finance providers to see if there is any outstanding finance on UNM 404R. If you buy a car with outstanding finance, the finance company can repossess it.

No warranty or guarantee of accuracy is provided for any free data on this page. The data guarantee applies only to information obtained through the purchase of a full check.