[kach22i]

Notes about Matra Murena aerodynamics

As we know, drag of the Murena body is quite low, with Cd values around 0.31 being quoted. This is comparable to cars like Porsche 924 (same Cd value) and Renault Fuego (Cd = 0.34 - 0.37) [See Katz appendix 1, pp 298,299]. Don't forget that Cd is a cooefficient - the actual resistance factor is multiplied by the frontal area.

https://en.wikipedia.org/wiki/Matra_Murena

The Matra Murena is a mid-engined, rear wheel drive sports car that was produced from 1980 through 1983 by the French engineering group Matra..................

Even though it used a chassis very similar in principle to the Bagheera and the same basic body-style, the styling for the Murena was all-new. The final shape was extremely aerodynamic for the time, with a reported drag coefficient ( C d {\displaystyle \scriptstyle C_{\mathrm {d} }\,} \scriptstyle C_{{\mathrm d}}\,) of 0.328.[5][4] The rear hatch opened to provide access to the engine mounted behind the passenger compartment and a rear luggage area. A signature feature carried over from the previous model was the seating arrangement - all three seats were placed in one row, with the middle seat folding down to become an armrest when not in use by a passenger.[7] In the Murena the three seats were separate, in contrast to the 2+1 arrangement in the Bagheera.