Based on the aggregated intelligence of 180,000-plus investors participating in Motley Fool CAPS, the Fool's free investing community, alternative fuel technologist Westport Innovations (WPRT 1.57%) has earned a coveted five-star ranking.

With that in mind, let's take a closer look at Westport and see what CAPS investors are saying about the stock right now.

Westport facts

Headquarters (founded)

Vancouver, Canada (1995)

Market Cap

$1.6 billion

Industry

Construction and farm machinery and heavy trucks

Trailing-12-Month Revenue

$155.6 million

Management

Founder/CEO David Demers

CFO William Larkin

Trailing-12-Month Return on Equity

(40.4%)

Cash/Debt

$215.9 million / $80.7 million

Competitors

Cardone Industries

Jasper Engine Exchange

New Flyer Industries

Sources: S&P Capital IQ and Motley Fool CAPS.

On CAPS, 98% of the 1,874 members who have rated Westport believe the stock will outperform the S&P 500 going forward.

Just last week, one of those Fools, kwstyle, succinctly summed up the Westport bull case for our community: "Natural gas engines will drive the future. With a growing infrastructure for commercial long haul trucks to refill and more government fleets going NG, that will push this stock higher in the long run."

Want to see how well (or not so well) the stocks in this series are performing? Follow the TrackPoisedTo CAPS account.