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AAMC MCAT Official Prep CARS Diagnostic Tool (Online) | 1-Year Subscription

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This section-specific diagnostic tool helps you identify areas of strengths and weaknesses as you prepare for the Critical Analysis and Reasoning Skills (CARS) section of the MCAT exam. This product is also included in the MCAT Official Prep Complete Bundle and MCAT Official Prep Online-Only Bundle.


You will have unlimited access to this MCAT Official Prep product for 365 days from date of purchase.


Compare all MCAT Official Prep products.


AAMC MCAT Official Prep CARS Diagnostic Tool (Online) | 1-Year Subscription
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Created by the developers of the MCAT exam, the CARS Diagnostic Tool includes 28 passage sets with questions to help you improve your critical analysis and reasoning skills. This product allows you to:

  • Watch video walkthroughs of how to approach answering two example CARS passage sets.
  • View the answers and the test developers’ solutions right away or later.
  • Read explanations for all answer choices in addition to explanations for how each question assesses a critical analysis and reasoning skill.
  • Highlight content from the passages and questions, and review your highlighted content later using the built-in highlight tool.
  • Add and review flags and notes to your answered questions.
  • View score reports to help you evaluate your performance in each skill category.
  • Compare your performance on every attempt of the passage sets by comparing all your previous score reports. Each MCAT Official Prep product allows an unlimited number of attempts.
  • Review strategies to help you improve your critical analysis and reasoning skills.
  • The CARS Diagnostic includes passages and questions that are not included in previous products. The CARS Diagnostic Tool has 28 passages compared to 21 passages found in the CARS Question Pack Vol. 1 and 22 passages in the CARS Question Pack Vol. 2.



All sales are final for AAMC MCAT Official Prep products. No refunds or exchanges will be issued.

If you plan to take a test preparation course, check with the course administrator before purchasing this product as access to MCAT Official Prep products may be included in your course.

The AAMC MCAT Official Prep Hub Terms and Conditions apply to the purchase and use of this product. You will have unlimited access to this MCAT Official Prep product for 365 days from date of purchase. You are restricted from sharing access or the content of this product with any third party. This product is not intended for individual resale.

The AAMC accepts Visa®, MasterCard®, American Express®, and Discover®.    



These products are accessible online using a device with secure access to the internet. Practice products (i.e. Question Packs) are mobile optimized and accessible via browser on your mobile or tablet device. The practice products are fully functional using a browser on a mobile or tablet device although the experience may vary slightly to accommodate the smaller screen sizes. The full-length products (i.e. Free Practice Exam, Practice Exam 1, etc.) require a desktop or laptop browser.

Web browser requirements* (Windows & Mac):

  • Google Chrome (recommended browser) *
  • Safari*
  • Firefox*
  • Microsoft Edge

*The current version of the browser and up to two previous versions. 


If you have questions about the AAMC Store or your purchase, please contact the AAMC Store. Representatives typically respond within one business day.

Frequently Asked Questions


How do I access products?

Access online products at the MCAT Official Prep Hub:

  1. Visit www.aamc.org/mcatprep.  
  2. Click on the “MCAT Official Prep Hub” on the right side of the page.
  3. Sign in using your AAMC username and password.

What is the difference between the recently released bundles and the bundles from previous years?

New products may be added to the bundles, but the products previously included (Practice Exam 1, 2, etc.) do not change year after year.


When do the MCAT Official Prep products expire?

Products expire one year from purchase. We do not offer extensions and we cannot place active products on hold. Students would need to re-purchase the products again. The expiration dates for your products are displayed in the MCAT Official Prep Hub. If you purchase a product again, all previously completed activity, including score reports, will still be available.


How can I tell if the MCAT Official Prep products currently sold are the same products I already purchased?

The MCAT Official Prep products available have not been changed since their publication. You will be able to identify when new MCAT Official Prep products are introduced because of the new title, detailed description, or edition. 


Do you offer any print products?

We currently offer one print product, The Official Guide to the MCAT Exam, Fifth Edition. All the other MCAT Prep products are only available in digital format and are accessible through the MCAT Official Prep Hub upon purchase.


Are these products the same products offered by test prep companies?

AAMC MCAT Official Prep products may be included in some test prep courses. Check with the course administrator before purchasing this product, as refunds and exchanges are not offered.


Do you offer any free products?

The AAMC offers free MCAT Official Prep products and study resources. The AAMC Fee Assistance Program includes free MCAT Prep products in their benefit package.


Other questions?

For more information about the MCAT Prep products, resources, and policies, visit our FAQs.