possible that wheel damage could occur as the vehicle pulls off the roadway. These interactive effects are expected to be negligibly small. However, as vehicle manufacturers adopt new components and systems to reduce fuel consumption, it will be important for the DOT to monitor these and other vehicle modifications to ensure that safety issues do not emerge.

Finding 7-4. Some of the potential safety improvements considered by the committee may have negligible impact on fuel consumption and, in some cases, appear to have positive implications. However, further study of the potential highway safety impact of high productivity vehicles is warranted.

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