Answer
There is a reason to be concerned with multicollinearity.
Work Step by Step
In MINITAB, enter the Engine Size values in C1, the Curb Weight values in C2, the Horsepower values in C3 and the Miles per Gallon values in C4.
Select Stat -> Basic Statistics -> Correlation
In variables enter C1 C2 C3 C4. You may deselect "Display p-values"
Click OK.
Since two correlations between the explanatory variables are greater than 0.7, there is evidence that multicollinearity exists.
