Why debate the existence of God with a fish emblem attached to the back of your car when you can show your support for the religion known around the world as Star Trek and pray on the Alter of Roddenberry with this Star Trek Fish Car Emblem.
The Star Trek: The Next Generation Technical Manual (pages 63, 65 and 66) states that the experiments with single and more than two nacelle designs, conducted in 2269, proved that having two nacelles is the optimal configuration for vessel control and power generation as represented by this chrome fish with dual warp nacelles.
So boldly go and proclaim your love for all things Trek. Lament that your car doesn't have an anti-matter warp core, or is armed with photon torpedoes!
(Please note prices are subject to change and the listed price is correct to the best of our knowledge at the time of posting)