I plan on creating a website with the same features and layout (coding wise) as www.itsmyhonda.com. Is there any possible way for me to get in trouble if I did such thing?
well, you should not do it because of copyright issues. but it depends to who you do it. I would personally link spam your site and it would be gone from the search engines in days. so... just know who you messing with.
There’s no reason to copy them in the first place, they did the hard work in creating their own site. Therefore, you should put some effort in and make your own site. You’re not going to get anywhere by copying someone.
That is a big site. How are you going to copy their code? I doubt if you could do it well enough to infringe on their copyright. They are better ways to get most of the same features and functionality from Open Source project. Then you just use your own logo and themes which will change the look and feel of the site anyway.