Objective: This study examines the relationship between errors on CPT and WCST to the total number of errors on the driving simulator in a normal adult population. Method: Data included 158 participants, with an average age of 30.06 (SD = 13.012) and an average education of 15.54 (SD = 2.037). Subjects with psychiatric or neurological issues were excluded. The data was derived from an on-going de-identified database of normal adults. They were administered CPT, WCST, as well as a driving simulator. Results: A Pearson correlation was conducted between all scores on CPT, WCST, and a driving simulator. At p < .01, CPT Omissions (r = .571), Hit Rate Standard (r = .364), Variability (r = .365), Response Style (r = .346), Perseveration (r = .237), Hit Rate Block Change (r = .157), Hit Rate ISI Change (r = .199), ADHD Percentage (r = .358), and Neurological Percentage (r = .326) was significantly correlated with Simulator Total Driving Errors. WCST total error (r = −.306), Perseveration error (r = −.201), and Non-Perseveration error (r = −.301) were significantly correlated with Simulator Total Driving Errors. Conclusion: Results revealed multiple significant positive relationships between CPT and simulator errors, as errors on CPT increased, maladaptive driving behaviors increased. This shows a relationship between an individual's ability to keep continuous sustained attention and regulate driving performance. WCST yielded a significant inverse relationship to total number of simulator driving errors, as scores on the CPT increased, an individual's maladaptive driving behaviors decreased. This shows a relationship between the individual's ability to problem solve in order to help regulate driving performance.