The woofer that you picked has low Fs. You want the Fs be around 50 hertz to 60 hertz. The next problem of your selected woofer is that the woofer will be flapping and compression more than in either sealed or vented alignments. Your third problem is that the box will be big and the tube lengths will be long. The size of the box and the length of the tubes will be hard to place the subwoofer. Your friends and the drivers on the road might think you are crazy having a long tube coming from your trunk and going around your car or going through the driver side window.
Try finding smaller woofers for this type of box alignment.