PORSCHE UNCLASSIFIED (1999)
Running costs, common problems, and reliability data based on 61 real MOT tests in 2024.
MOT Pass Rate
92%
Total Tests (2024)
61
Avg Mileage
81,375 mi
Est. Annual Cost
£2,097
Is the 1999 PORSCHE UNCLASSIFIED reliable?
Excellent reliability. Very few MOT failures. That's 10 points above the national average of 82%.
At 25 years old, 92% of PORSCHE UNCLASSIFIEDs from 1999 passed their MOT first time in 2024. That's based on 61 tests across the UK. The average mileage at this age is 81,375 miles.
How does the 1999 PORSCHE UNCLASSIFIED compare?
Mileage Analysis
The average 1999 PORSCHE UNCLASSIFIED has 81,375 miles on the clock, which is significantly below the expected 185,000 miles for a 25-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.
How much does a 1999 PORSCHE UNCLASSIFIED cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
PORSCHE UNCLASSIFIED by Year
Checking a specific PORSCHE UNCLASSIFIED?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 1999 PORSCHE UNCLASSIFIED
The 1999 PORSCHE UNCLASSIFIED is a luxury with a 3400cc petrol engine. 61 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It ranks in the top 7% of all 1999 cars for reliability.
With an average of 81,375 miles at 25 years old, PORSCHE UNCLASSIFIED owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.
1999 PORSCHE UNCLASSIFIED Fuel Costs
The 3400cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 1999 PORSCHE UNCLASSIFIED?
Total estimated annual running cost is £2,097 (£175/month), broken down as £1592 fuel, £250 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 92% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Buying a Used 1999 PORSCHE UNCLASSIFIED
At 25 years old, the PORSCHE UNCLASSIFIED is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. Note: with only 61 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 1999 PORSCHE UNCLASSIFIED
The PORSCHE UNCLASSIFIED is actually the most reliable option among similar petrol luxurys from this era. Here are comparable petrol cars with similar engines:
- BMW 3 SERIES (2001) 77% pass rate (-15%) from 9,406 tests
- BMW Z3 (1999) 78% pass rate (-14%) from 8,191 tests
- PORSCHE BOXSTER (2001) 83% pass rate (-9%) from 4,134 tests
- PORSCHE 911 (1999) 87% pass rate (-5%) from 3,668 tests