Opel Trixx
{{Infobox automobile
| name = Opel Trixx
| image = OpelTrixx.JPG
| manufacturer = Opel
| production = 2004 (Concept car)
| body_style = 5-door hatchback
| layout = Front engine, front-wheel drive
| length = {{convert|3000|mm|in|1|abbr=on}}
| width =
| height ={{convert|1540|mm|in|1|abbr=on}}
| wheelbase =
| designer= Stefan Arndt
Martin Smith
| related = Opel Agila
}}
The Opel Trixx (stylised as TRIXX) is a concept city car created by German car manufacturer Opel. It was unveiled at the 2004 Geneva Motor Show.{{cite web|title=Opel Trixx|url=https://www.caranddriver.com/news/a15133354/opel-trixx-auto-shows/|website=Car and Driver|access-date=17 May 2020|date=1 February 2004}}
The brief was set out by Opel CEO Carl-Peter Forster to the Opel and Saab design studios, and was led by executive director of design Martin Smith and chief designer Stefan Arndt. The car was built at Carrozzeria Coggiola in Italy.{{cite web|title=Opel Trixx concept for the Geneva Motor Show|url=http://www.cardesignnews.com/news/2004/040202opel-trixx/index.html|website=Car Design News|access-date=17 May 2020|date=6 February 2004|archive-url=https://web.archive.org/web/20060318050132/http://www.cardesignnews.com/news/2004/040202opel-trixx/index.html|archive-date=18 March 2006}} This concept influenced future small-car designs for Opel, such as the 2007 Opel Agila.{{cite web|url=https://www.autoblog.com/2007/05/14/gm-introduces-opel-vauxhall-aglia-city-car/|title=GM introduces new Opel/Vauxhall Agila city car|website=autoblog.com|date=14 May 2007|access-date=14 October 2020}}
The three-metre long car features an asymmetrical door layout, with sliding doors and a sliding roof hatch for large cargo.{{cite web|title=2004 Opel TRIXX Concept|url=http://www.conceptcarz.com/vehicle/z7864/Opel_TRIXX/default.aspx|website=Concept Carz|date=17 May 2020|access-date=17 May 2020}} A cycle rack is concealed in the pull-out rear bumper feature. The Trixx is powered by a 1.3-litre diesel engine with common rail direct injection. This gives the car a claimed top speed of 70 mph (112.6 km/h). The Trixx featured the Flex 3 layout. This offers seating for three adults and one child on a folding seat, or a single-seater format with a large, 1,010-litre luggage area.{{cite journal|last1=Watson|first1=Mat|title=Is Trixx a treat?|journal=Auto Express|date=14 April 2004|issue=802|pages=48–49}} The rear passenger seat is inflatable to save space when not in use; it is inflated by pulling up the head restraint.{{cite web|url=https://www.fleetnews.co.uk/news/2004/2/10/opel-s-box-of-trixx/15908/|title=Opel's box of Trixx|website=fleetnews.co.uk|date=10 February 2004|access-date=1 December 2020}}
It was anticipated that an electric concept car based on the Ampera and the Trixx would follow in 2009, but this was not forthcoming.{{cite web|url=https://www.motorauthority.com/news/1033114_opel-planning-electric-city-car-based-on-trixx-concept|title=Opel planning electric city car based on Trixx concept|website=motorauthority.com|date=7 May 2009|access-date=14 October 2020}}