Car clubs or Toyota affiliation programs that provide additional savings/discounts/cash incentives/rebates on new purchases

[Garreth Brannigan]

Hello,

I am planning to buy a new 2016 Toyota Sienna in the next couple of weeks. It will be my first ever Toyota purchase. I am looking to see are there any discount programs out there for new car buyers outside of any rebate program provided directly by Toyota. That is, acquire additional savings on the purchase of a new Toyota through membership in some particular organization.  

In my area (eastern MA), I am aware of the $750 "customer cash" Toyota are offering on 2016 Siennas bought from dealer inventory by 4/4/16. I've never been a member of the military so I can't pursue that angle for discounts. AAA does not provide any rebates (though members can start the car buying process through their website but it's just a white label of TrueCar).

I'd be grateful for any advice.

Thanks,

--gar