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CATERHAM SEVEN (S3) (2003)

Running costs, common problems, and reliability data based on 106 real MOT tests in 2024.

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MOT Pass Rate

94%

Total Tests (2024)

106

Avg Mileage

29,269 mi

Est. Annual Cost

£1,717

Is the 2003 CATERHAM SEVEN (S3) reliable?

Excellent reliability. Very few MOT failures. That's 12 points above the national average of 82%.

At 21 years old, 94% of CATERHAM SEVEN (S3)s from 2003 passed their MOT first time in 2024. That's based on 106 tests across the UK. The average mileage at this age is 29,269 miles.

How does the 2003 CATERHAM SEVEN (S3) compare?

Rank among all 2003 cars13th out of 445(top 3%)
Rank among all CATERHAM models19th out of 64(top 30%)
vs national average+12% (82% avg)
vs 2003 cars average+22% (72% avg)
vs CATERHAM average+3% (91% avg)

Mileage Analysis

The average 2003 CATERHAM SEVEN (S3) has 29,269 miles on the clock, which is significantly below the expected 155,400 miles for a 21-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

Best year to buy a CATERHAM SEVEN (S3)?

The most reliable year is the 2010 model with a 98% MOT pass rate, while the 1993 model has the lowest at 81%. The 2003 sits between the two at 94%.

How much does a 2003 CATERHAM SEVEN (S3) cost to run?

⛽Fuel (Petrol, 1796cc)
£1,327
🏛️Road Tax
£135
🔧MOT Test
£55
🛠️Predicted Repairs
£200
Total per year£1,717
Per month£143/mo

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.

CATERHAM SEVEN (S3) by Year

YearPass RateTestsAvg Mileage
201293%4016,004 mi
201193%3014,241 mi
201098%8516,427 mi
200995%6216,632 mi
200896%7817,886 mi
200791%6821,458 mi
200690%7222,879 mi
200594%10825,049 mi
200488%11724,266 mi
200394%10629,269 mi
200293%11730,776 mi
200188%7423,704 mi
200090%11030,131 mi
199994%21328,243 mi
199897%18122,980 mi
199786%20627,923 mi
199691%13632,005 mi
199587%6838,407 mi
199494%11336,410 mi
199381%8028,863 mi
199287%6831,446 mi
199188%5130,774 mi
199087%3139,253 mi

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About the 2003 CATERHAM SEVEN (S3)

The 2003 CATERHAM SEVEN (S3) is a family car with a 1796cc petrol engine. 106 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It ranks in the top 3% of all 2003 cars for reliability.

With an average of 29,269 miles at 21 years old, CATERHAM SEVEN (S3) 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.

2003 CATERHAM SEVEN (S3) Fuel Costs

The 1796cc petrol engine offers a reasonable balance between performance and economy. Expect around 36 mpg in mixed driving, which works out to roughly £1,327 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).

What does it cost to own a 2003 CATERHAM SEVEN (S3)?

Total estimated annual running cost is £1,717 (£143/month), broken down as £1327 fuel, £135 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 94% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

CATERHAM SEVEN (S3) Reliability Trend

Newer CATERHAM SEVEN (S3)s show better MOT pass rates than older ones, with an average improvement of 3 percentage points.

Buying a Used 2003 CATERHAM SEVEN (S3)

At 21 years old, the CATERHAM SEVEN (S3) 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. If you're flexible on year, the 2010 model has the highest pass rate at 98%.

Alternatives to the 2003 CATERHAM SEVEN (S3)

The CATERHAM SEVEN (S3) is actually the most reliable option among similar petrol family cars from this era. Here are comparable petrol cars with similar engines: