International Speedway (ISCB) SC 13E3/A Going private transaction (amended)

Exhibit (c)(18)

 STRICTLY PRIVATE & CONFIDENTIAL  Project O2 Counter Proposal Considerations($ in millions)  Note: Assumes PF EBITDA of $324mm as of transaction close (30-Jun-2019) which includes cash distributions from equity investments (~30mm per year). Assumes family roll of 14,919,745 shares,which assumes buyout of 3,488,550 shares held by Brian France for cash. Assumes $100mm in minimum cash and $75mm fees and expenses.1  Proposal  Price Per Share  % Increase / (Decrease) to Proposal  % Implied Premium to Undisturbed 30- Day VWAP  Implied Ignite Enterprise Value  $ EV Increase / (Decrease) to Proposal  PF Gross Debt (30-Jun-2019)  $ Debt Increase/ (Decrease) to Proposal  PF Gross Leverage(30-Jun-2019)  Ignite Original Proposal  $ 54.00  28.6 %  46.3 %  $ 2,341  $ 521  $ 1,804  $ 342  5.5 x  Ignite Current Proposal  50.00  19.0 %  35.5 %  2,167  348  1,690  228  5.2  Ignite Share Price  49.00  16.7 %  32.8 %  2,123  304  1,661  200  5.1  Ignite Share Price  48.00  14.3 %  30.0 %  2,080  261  1,633  171  5.0  Ignite Share Price  47.00  11.9 %  27.3 %  2,036  217  1,604  143  4.9  Ignite Share Price  46.00  9.5 %  24.6 %  1,993  174  1,576  114  4.8  Ignite Share Price  45.00  7.1 %  21.9 %  1,950  130  1,547  86  4.7  Ignite Share Price  44.00  4.8 %  19.2 %  1,906  87  1,519  57  4.7  Ignite Share Price  43.50  3.6 %  17.9 %  1,884  65  1,504  43  4.6  Ignite Share Price  43.00  2.4 %  16.5 %  1,863  43  1,490  29  4.6  Nova Current Proposal  42.50  1.2 %  15.1 %  1,841  22  1,476  14  4.5  Nova Original Proposal  42.00  0.0 %  13.8 %  1,819  0  1,462  0  4.5