Apparently stretched Toyotas are going to be a big thing at SEMA this year. After recently revealing Cartel's "All Stretched Out" Scion xB, it now appears that Toyota will also show off a limousine/rolling office Sienna at SEMA in order to commemorate the popularity of its "Swagger Wagon" video.

Built in partnership with B.A.D. Company, the V6-powered "Swagger Wagon Supreme" wears a coat of Blue Swagger Opal and been stretched 44 inches. Also, this Sienna now rides on 20-inch KMC rims that hide an airbag suspension setup to make it more comfortable and easier to drive on the open road (...).

Due to the 44-inch extension, the roof panel has been replaced with an acrylic unit measuring about 8 feet. The new roof is meant to improve the "functional family vehicle's" interior ambiance.

Do you consider yourself an avid off-road enthusiast, who hangs out more in the wilderness than in the urban jungle? Then Four Wheel Magazine's Project Toyota 4Runner Backcountry might be the vehicle for you. This special 4Runner concept is part of Toyota's 2010 SEMA line-up and is said to have been built as a "self-contained exploration rig."

Here's our second part on the 2010 Los Angeles Auto Show's "Design Challenge" with futuristic-looking lightweight concept models from Mercedes, Nissan, Smart, Toyota and Volvo. For the first group of concept studies, click here to check out our previous post.

Say 'hallo' to Toyota's bling-bling shiny iQ Disco, a concept model that was created by the firm's German division purely for demonstration purposes as the oversized Japanese disco ball on wheels will tour dealerships all over the country, starting from showrooms in Cologne.