Off the top of my head.
Amt 50 Chevy Truck ( Bruce commented on ) , 1953 Corvette Blue Flame 6
MPC Willys Jeep, Monogram 88 Thunderbird Turbo Coupe , Monogram Duesenberg Has an Inline 6 or 8.
Now with some looking around.
Lindberg 29 Mercedes Benz SSK has an inliner. The Olds Aerotech has a Quad 4, newly released Datson Pickup has a 4 cylinder, Amt Courier has a Turbo 2.3 4 , 1932 Chevy has a 6 roadster and the delivery also, Monogram 31 Rolls Royce has a 6.
What does the 30's Packard Boat tail have in it?
The one I have not seen mentioned yet is the Hudson kits. With that being Said I am in with a Hudson. I think I have one here.