If you look at the documentation for the Simscape Driveline Generic Engine block, you will see that it can be configured to accept torque-speed or torque-power data as a lookup table. Both of those curves are provided in the data sheet that you linked to. See the image below - upper part of the image is a screenshot from the data sheet, lower part of the image is a screenshot from the Simscape Driveline Generic Engine dialog box. The data sheet also provides the single data point that is needed if you chose to use the first option, "Normalized 3rd-order polynomial matched to peak power".
If you want a great tool for getting data sheet curves from images into MATLAB as data, check out GRABIT on the MATLAB Central File Exchange.
Thanks for the question and the link to the data sheet.
--Steve
