Should I check the MOT history before buying a 1999 Cadillac Seville Sts V8 Auto?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 1999 Cadillac Seville Sts V8 Auto?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 1999 Cadillac Seville Sts V8 Auto?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Do I need an HPI check when buying a 1999 Cadillac Seville Sts V8 Auto?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Cadillac Seville Sts V8 Auto (1999)

137 real MOT outcomes analysed • 73.6% first-time pass rate

1999 Cadillac Seville Sts V8 Auto

CarHunch analysed 137 real MOT records for the 1999 Cadillac Seville Sts V8 Auto. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Below average reliability 6.4% below UK average

73.6%

pass MOT first time

UK average: ~80%

78,320

typical mileage

55,860–100,854 middle half

19.7%

ever had a dangerous defect

recorded at any MOT

2.12

avg MOT failures per car

over 10.2 tests on record

What to check before buying a 1999 Cadillac Seville Sts V8 Auto

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 Cadillac Seville Sts V8 Auto

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

Inspection

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Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (97%)	133	73.2%	2.14
LPG (2%)	3	88.3%	1.67
Other (1%)	1	87.5%	1

Mileage Distribution

Most 1999 Cadillac Seville Sts V8 Auto 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.

55,860

low mileage

78,320

typical

100,854

high mileage

Half of all 1999 Cadillac Seville Sts V8 Auto vehicles fall between 55,860 and 100,854 miles.

1999 Cadillac Seville Sts V8 Auto — Still on the Road

Numbers are declining — 15 vehicles still getting MOTs in 2025 (28% of peak).

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.

MOT History Averages

10.2

Avg MOT tests per vehicle

2.12

Avg failures per vehicle

12.8

Avg advisories per vehicle

Found a specific Cadillac Seville Sts V8 Auto?

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

Other model years — Cadillac Seville Sts V8 Auto:

2001