1. BMW Z4M
Torsional Stiffness: 14500Nm/degree
Notes: Nearly three times stiffer than the car it superseded, the Z3!!!
2. Lotus Elise
Torsional Stiffness: 10500Nm/degree
Notes: The incredible bonded and riveted aluminium-alloy body tub weighs in at under 100kg, let has a torsional stiffness of over 10000Nm/degree! Awesome...
3. New 2006 MX-5
Torsional Stiffness: 8800Nm/degree (est.)
Notes: Sales literature indicates that the new 2006 MX-5 is 47% stiffer than the original - which taking 6000Nm as our baseline, gives us an estimated figure of 8800Nm/degree
4. MGTF
Torsional Stiffness: 8500Nm/degree (est.)
Notes: Sales literature suggests TF is 20% stiffer than MGF, which gives us an estimated torsional stiffness of 8500Nm/degree... therefore remains class competitive with the newly launched MX-5!
5. MGF
Torsional Stiffness: 7100Nm/degree
Notes: Stiffest roadster in its class at launch - and surprisingly remains competitive even now.
6. MX-5 (mk1)
Torsional Stiffness: 6000Nm/degree (approx)
Notes: used as bench mark for MGF chassis development - 6000Nm/degree used as target stiffness for MGF.
7. BMW Z3
Torsional Stiffness: 5600Nm/degree
Notes: Not what you'd call the "Ultimate Driving Machine" with this torsional stiffness!
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Questo è l'estratto di un documento caricato nel nostro forum da un altro utente, secondo voi quanto influisce sulle mere prestazioni questa Torsional Stiffness? Io provando una MGF mi sono subito reso conto che dietro era un po' meno stabile, infatti mancano dei tralicci orizzontali che sulla TF hanno poi messo(e il risultato c'è e si vede)

Qualcuno di voi è passato da una NA a una NC? Mi interesserebbe molto sapere la sua opionione vista la notevole differenza