While $55,595 may seem like a hefty premium for the hybrid, it’s quite reasonable: a like-equipped Lexus GS 430 runs up to a sticker price of $53,705 – including shipping – which works out to a $1,850 hybrid “tax.” When you consider the fuel economy difference, plus the $1,550 tax credit through September 2006 ($775 after Sept.) AND the performance boost, the GS 450h just may be a better deal.