Most places will give you the option to put nothing down...however, you need to remember that you will be upside down on this loan (meaning you owe more than it is worth) throughout most of the life of the loan (assuming 72 month tenor)...
There is nothing wrong with this, but some lenders will require gap insurance (insuring the difference between the loan value and the value of the car) which will add to financing costs. In addition, if you are going to be upside down you will want to hold onto the car for at least 5 yrs (so that you will at least be at breakeven)...given that this is a Lexus forum, we all love the cars, so keeping it 5+ years is not really a problem... :D
Happy Hunting!