There is nothing, other than a Caterham 160, that is cheap & I'm not sure it is comparable with anything.
Perhaps the base MX5 sets the floor level at £18.5K.
Consider the following, remember we are comparing "new with new" and excluding extras and delivery.
Car.............Engine...PriceCaterham 160....1.6.....£15,000
Mazda MX5.......1.8.....£18,500
Mini Roadster....1.6.....£21,000
Audi TT ..........1.8.....£26,500
Lotus Elise......1.6.....£28,000
Morgan 4/4....1.6.....£33,075BMW Z4 ........2.8.....£33,650
Mercedes E Cab..2.5....£34,500
Mercedes SLK...2.5.....£35,720
Morgan +4....2.0.....£36,285BMW 4 Series...3.5.....£41,000
Morgan Roadster 3.7..£45,900Poesche Boxster.3.4.....£47,035
Caterham 620 R..2.0.....£50,000
Lotus Exige.....3.7.......£52,900
Jaguar F.........5.0.......£65,000
Mercedes SLK....5.0......£83,445
Morgan +8....4.8.......£85,200So:
"Poverty" Models need to be under £30K. The 4/4 needs to be about £27K, not £33K
"Mid Stream" models should be between £30K and £40K, the +4 is well priced.
"Blow" modesl should be between £50K and £80K: the Plus 8 is too expensive.
Conclusion: MMC are not too far off the market prices in the middle, especially when considering the brand value and iconic hand built status.....no coincidence then that the Plus 4 is the best seller...
The 4/4 needs to be less than £30K to be attractive.
The Roadster sits in a difficult place: it isn't that expensive when compared with a base Boxster, but it is not comparable dynamically or as far as bild quality is concerned.
The Plus 8 is over priced. possibly why it doesn't sell that well but at £70K it would compare more realistically with things like the F Type and SLK. In terms of performance and refinement it is already there, it is just too expensive.
You know it makes sense! 
