Italeri does a 1:24 Willys Jeep in regular WW2 guise and as the European Fire Jeep. The Fire Jeep is the same kit except molded in red plastic and with an extra two sprues of fire fighting equipment, it still includes the antenna and canvas cover of the WW2 Jeep. Very nice kits.
I've got two Fire Jeeps, it is kit #722. I built one as the regular WW2 Jeep.
ITC also made the T-92 airborne drop tank. This kit represented the first prototype since it doesn't have the compensating idler wheel. The T-92 was designed to replace the M-41 Walker Bulldog but was cancelled when the amphibious Soviet PT-76 was introduced. The Army went with the M551 Sheridan instead.
I've got the ITC T-92. A friend of mine cast some resin ruck sacks and 5 gallon cans so I could detail the kit. Another friend is going to turn an aluminum barrel for me.
Blue Tank did a motorized Jeep kit that was boxed as 1/35 but is actually 1/24-1/25. It is the same size as my Italeri Jeep.
Revell-Monogram does TOW HMMWV (M996). This was a snap tite kit and was issued in solid green with stickers to replicate the camouflage scheme. There was a second issue in their ProFinish line with a pre-painted body. I have both kits, the ProFinish "Desert Storm" one is #1323. Here is one on eBay: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=2589&item=5924696343
ITC also did the T-113E2 in 1/24 scale. This vehicle is the prototype to the M113 series APCs. I just found out about this kit about a week ago. I had a discussion with someone who has one on Hyper Scale. He sent me scans of the instructions.
http://disc.server.com/discussion.cgi?disc=203983;article=25219;title=Tank%20Talk%20-%20HyperScale%27s%20Military%20Vehicle%20Discussion%20Group;pagemark=60
HTH