It’s been months since we’ve seen the 2021 Toyota Sienna, but engineers have been busy as the next-generation minivan has progressed from a mule to a proper prototype.

Spied undergoing testing in Michigan, the van is heavily disguised but a few details are visible through the camouflage. The most notable are angular headlights and circular fog lights. The latter are mounted low and separated by a wide intake with a honeycomb mesh insert.

Moving further back, we can see new door-mounted mirrors and revised side skirts. The van also appears longer than before and it looks like much of this extra room will benefit third row passengers. Of course, that also means we can expect more cargo space when the rear seats aren’t in use.

Also Read: 2021 Toyota Sienna Test Mule Reveals Longer Wheelbase, Wider Track

The rear end isn’t very revealing, but we can see new taillights and a redesigned rear bumper. There also appears to be a more rakish rear window, but it’s hard to be certain with all the camouflage.

Toyota hasn’t said much about the Sienna, but the model is expected to ride on the TNGA that underpins everything from the Camry to the Highlander. Like the two aforementioned models, the van will likely be equipped with a 3.5-liter V6 engine.

There’s no word on the output, but the engine produces 295 hp (220 kW / 299 PS) and 263 lb-ft (356 Nm) of torque in the redesigned Highlander. The Camry is a tad more powerful as it’s rated at 301 hp (224 kW / 305 PS) and 267 lb-ft (362 Nm).

We shouldn’t have to wait much longer to find out about the van as reports suggest it could be introduced in the first half of next year.