Kevin,
While the considerations over SEO, page rankings, etc. are all important, to me the most important question remains unanswered:
Does anyone have experience of how much more they made by having the GM/Cobalt site link vs. not having it?
If don't have that info, how about the following say for 3 months:
1) # leads dealership received from GM/OEM site
2) # delivered vehicles from those leads
3) Total front & back end gross on those sales
4) Cost of Cobalt site
In the above, duplicate leads + subsequent sales are attribued to the first source from which they are received.
Is the answer positive or negative?
It needs to be positive since other overhead factors need to be covered (sales compensation, CRM, BDC, etc.).
And not to be unfair to the GM/Cobalt structure, this should be done to all Internet efforts as any unprofitable efforts could be from things that could be fixed + have nothing to do with the Cobalt website.
I speak to Internet Managers all day long on such things. Here are some benchmarks:
1) Prospect : Sales ratio = 15-20%.... that's right for your own website leads & those from your OEM, the benchmark should be on par with what you are doing in the showroom. 3rd party leads will be 1/2 of that.
2) Front and back end grosses... Equal to your showroom grosses. Period. It's your process + talk tracks if you are not getting this. No difference for 3rd party leads.
Personally I like the plain vanilla dealership websites. I am on dealer websites every day so get to see the spectrum. Here's why I like them:
A dealer's website exists to make it convenient for a consumer to find, buy + communicate with you. And as a dealer, I only want you to find + communicate with me so you will buy from me.
So as a dealer, the goal of my website + what I do on the Internet is to get consumers to BUY service, parts & vehciles. The main problem I tend to see with sites that do more than what I call plain vanilla (research, inventory, about us, contact us) is the following:
1) Inquiring is NOT buying.
2) The sales psychology of websites designed to get the consumer to inquire is wrong / ineffective. For example, here's VIN decoder info on this new vehicle + its MSRP + maybe its price. Call or email. That would be ineffective in the showroom, why is that the implemented strategy on the Internet?
3) The above actually encourages those consumers willing to cough up their info this early to treat you like a commodity. Where is the bonding + rapport? Where is the sizzle to the new vehicle purchase?
4) And I don't mean add a bunch of gimmicks to the site, although those can be useful if they get the consumer communicating - what's my trade worth, live chat, etc.
But I digress... If your website is designed to get people to inquire so you can sell them an appointment + get them in to the showroom, then plain vanilla is just fine. Get the cheapest good one you can find (I actually like Cobalt's base package if that is the objective).
Shameless plug: If you want to add a member's only section with an eCommerce capability (verify email address to get in, but then get complete consumer facing desking + F+I experience, accurate prices, interest, rebates, etc.), again plain vanilla will do so the calls to action (BUY) don't get lost in the noise + navigation. Or at least that is what I recommend.
Best of Luck Kevin, and congratulations on asking the right questions.