Jaguar Xk Sports - Problems, Statistics, and Analysis

Jaguar Xk Sports owners have reported a total of 2 problems for their cars built in the 2 model years listed in the chart below. The chart shows the number of problems reported across all service years for each given model year of the Jaguar Xk Sports. The 2006 Jaguar Xk Sports cars have the most problems reported (1 problems).

Table 1. Total number of problems by model year for Jaguar Xk Sports

Model Year Number of Problems
  2006 Xk Sports
1
  2005 Xk Sports
1

  Common problems of Jaguar Xk Sports

The following chart shows the 2 most common problems for Jaguar Xk Sports cars. The number one most common problem is related to the vehicle's service brakes, hydraulic (1 problem). The second most common problem is related to the vehicle's air bags (1 problem).

Table 2. Common problems of Jaguar Xk Sports

Problem Category Number of Problems
  Service Brakes
1
  Air Bag
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Jaguar Xk Sports of an older model year to newer model years since older vehicles have been in service longer and thus are expected to have more problems. In order to compare the reliability across Xk Sports model years, we use the PPMY index which is defined as the problems reported per thousand vehicles per Year. A smaller PPMY index indicates greater reliability of the given model year cars.

    PPMY = P / S / Y * 1000,

where P = total problems reported during the life of a Jaguar Xk Sports model year; S = total units sold of the model year; Y = years since the debut of the model year (the age of the vehicle).

The results are shown in Table 3.

Table 3. Use PPMY Index to Compare Reliability Across Xk Sports Model Years

Xk Sports
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2006 12,17612    
0.04
  2005 12,47513    
0.03


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