I somehow got from Mr. Regular’s Renault Encore review to Renault 5 racing. A bit of Googling about the Renault 5 TS Championship I had found on youtube led me to the above image.
For a second I thought that it had been converted to RWD but the BAT page claimed the engine layout was stock. Further research showed that Renault felt that just mounting the whole engine and transmission backwards like SAAB did wasn’t quirky enough for them and instead they should just mount the transmission on the same end of the engine as the accessories.
It would appear that the Turbo versions got a more traditional transverse layout.