Coloni CN1

{{Short description|Italian open-wheel race car}}

{{Infobox racing car

| Car_name = Coloni CN1{{cite web|url=https://www.nismo.co.jp/M_SPORTS/2001/ot/overview.html|title=Overview : Open Telefonica Formula NISSAN|access-date=8 October 2022}}

| Image = Coloni CN1-98 front 2017 Museo Fernando Alonso.jpg

| Category = World Series by Nissan

| Constructor = Coloni

| Designer = Enrique Scalabroni

| Successor = Dallara SN01

| Chassis = Carbon fiber monocoque

| Wheelbase = {{convert|2675|mm|in||abbr=on}}

| Track = Front: {{convert|1770|mm|in||abbr=on}}
Rear: {{convert|1750|mm|in||abbr=on}}

| Engine name = Mid-engine, longitudinally-mounted, {{convert|2.0|L|cuin|1|abbr=on}}, Nissan SR20, I4, DOHC, NA

| Power = {{convert|250-280|hp|kW|0|abbr=on}} @ 8000 rpm{{cite web|url=https://www.flickr.com/photos/thegallerycars/38114916236|title=Formula NISSAN COLONI CN1|website=flickr.com|access-date=8 October 2022}}
{{cvt|237|Nm|lbft}} @ 6750 rpm

| Gears = 5-speed

| Type = H-pattern manual or sequential manual + reverse

| Differential =

| Weight = {{convert|455|kg|lb||abbr=on}}

| Tires = Michelin Speedline
10" Front, 12" Rear

| Debut = 1998 Albacete Euro Open by Nissan round

| Last_event = 2001 Ricardo Tormo 2nd Open Telefónica by Nissan round

| Races = 62

| Wins = 62

| Poles = 62

| Fastest_laps = 62

| Cons_champ = Campos Motorsport (1998, 1999, 2000)
Graffin Epsilon (2001)

| Drivers_champ = Marc Gené (1998)
Fernando Alonso (1999)
Antonio García (2000)
Franck Montagny (2001)

}}

File:Coloni CN1-98 front-left 2017 Museo Fernando Alonso.jpg

The Coloni CN1 is an open-wheel formula racing car, designed, developed, and built Italian manufacturer, team, and constructor, Scuderia Coloni, for the one-make World Series by Nissan spec-series, between 1998 and 2001. It was powered by a naturally-aspirated {{cvt|2.0|L|cuin}} Nissan SR20 four-cylinder engine, producing between {{cvt|250-280|hp|kW}}.