Table of Contents ANNEX 100K MILESTONE GIFT On September 10, 2018, we announced a commitment by our chief executive officer, Ernest Garcia III, to contribute 165 shares of Class A common stock to us from his personal shareholdings for every one of our then-existing employees upon their satisfying certain employment tenure requirements. In connection with these contributions, we have made corresponding grants of 165 restricted stock units under our 2017 Omnibus Incentive Plan to each employee who has satisfied the requirements and intend to make grants to the remaining then-existing employees as they satisfy the requirements (the “100k Milestone Gift” or “Gift”). Under U.S. GAAP, the 100k Milestone Gift is treated as compensation expense, a portion of which relates to the production of our used vehicle inventory and is therefore capitalized to inventory and subsequently recognized within costs of sales when the related inventory is sold. NON-GAAP FINANCIAL MEASURES To supplement the consolidated financial statements, which are prepared and presented in accordance with GAAP, we also present the following non-GAAP measures: gross profit ex-Gift, gross profit per unit ex-Gift, EBITDA ex-Gift, and EBITDA margin ex-Gift. We believe the presentation of both GAAP and non-GAAP financial measures provides investors with increased transparency into financial measures used by our management team, and it also improves investors’ understanding of our underlying operating performance and their ability to analyze our ongoing operating trends. All historic non-GAAP financial measures have been reconciled with the most directly comparable GAAP financial measures. GROSS PROFIT EX-GIFT AND GROSS PROFIT PER UNIT EX-GIFT Gross profit ex-Gift and gross profit per unit ex-Gift are non-GAAP supplemental measures of operating performance that do not represent and should not be considered an alternative to gross profit, as determined by GAAP. Gross profit ex-Gift is defined as gross profi