Hi,
There were several different versions of the GTV6, but nothing called a "Cloverleaf" to my knowledge. Here is a list of what I know about:
1. 1982 Balocco - Red paint and special black stripes, black and silver wheels, black seat with red piping, special identification, red carpeting. Only 350 numbered cars were built.
2. 1984 Maratona (North America only, I believe) - Fender flares, special front spoiler, rear window louvers, rear license plate cover (standard after 1984 on all GTV6s), black leather interior, silver paint, fog lights. These were not numbered like the Balocco, but only 150 were built (actually standard silver/ black leather GTV6s modified here in the USA).
3. 1985/86(?) Chaparral - I don't know much about these, but they were rare and built by the tuner firm in the UK (I believe). There is a thread about these here somewhere.
4. 1986 Callaway Turbo - Turbocharged and bodily modified by Reeves Callaway in the USA, these are very fast and expensive cars. I believe there were 300 built.
5. Gran Prix - a dealer package I believe...I don't have any info about these. But they seem to have been sold in Europe.
6. 1983/84 South African 3.0L with carbs - Very fast! I believe these were only made and sold in SA as a homologation type of car to permit the GTV6 to race in a specific race class.
Anyone else have any more info? There is a good GTV6 site at
AlfaGTV6.com ~ Home of the Alfa Romeo Transaxle.