First Quarter 2017 Financial Review

National Dealer Services 65+ years of floor plan lending Franchise Distribution (Based on period-end loan outstandings) Toyota/ Lexus 16% Honda/Acura 15% Ford 9% Other¹ 10% Total $6.9B GM ៩៖ 9% Fiat/ Chrysler ☐ ■ Top tier strategy Focus on "Mega Dealer" (five or more dealerships in group) Strong credit quality Robust monitoring of company inventory and performance Other Asian 10% ■Floor Plan 11% Mercedes 3% Other European 10% 3333 Nissan/Infiniti 7% 3.8 Geographic Dispersion California 64% Texas 6% Michigan 19% Other 11% Average Loans ($ in billions) 1Q12 1.9 - 2Q12 2.3 3Q12 2.3 4Q12 2.5 1Q13 2.8 2Q13 3.1 5.1 3Q13 2.9 4.9 4Q13 3.2 1Q14 3.2 5.3 2Q14 3.5 5.7 3Q14 3.2 5.5 4Q14 3.4 5.7 1Q15 3.5 5.9 2Q15 3.6 6.0 3Q15 3.5 6.0 4Q15 3.7 6.2 1Q16 3.8 6.2 2Q16 4.0 6.5 3Q16 3.8 6.3 4Q16 | 4.0 6.6 1Q17 4.1 16.8 3/31/17 1Other includes obligations where a primary franchise is indeterminable (rental car and leasing companies, heavy truck, recreational vehicles, and non-floor plan loans) 3/31/17 Technology and Life Sciences Comerica Bank 23 20+ Years experience provides competitive advantage Technology & Life Sciences Avg. Loans Strong relationships with top-tier investors Granular portfolio: ~800 customers (including ~190 customers in Equity Fund Services) Manage concentration to numerous verticals to ensure widely diversified portfolio ■ Closely monitor cash balances and maintain robust backroom operation 2.5 2.0 ($ in billions) ■Equity Fund Services 3.2 3.2 3.1 1.4 1.6 1.1 0.4 2013 0.6 2014 2015 2016 1Q17 Customer Segment Overview (based on period-end loans) 15 offices throughout US & Canada Recent growth driven by Equity Fund Services • Commercial banking services for venture capital & private equity firms Equity Fund Services -50% • Bridge financing for capital calls Strong credit profile Late Stage -12% Total $3.1B Leveraged Finance -6% Early Stage -12% Growth -20% Comerica Bank Ⓡ 24

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